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TRANSCRIPT
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Oct
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TOWARD A GREENERAND SUSTAINABLE FUTURE
OASIS DE VIE Healthcare Center To Open In The Heart Of Beirut
USEK BASSIL MEDICAL BUILDINGPROGRESS - PEOPLE - PLANET
BUILDINGACOUSTICS The Fundamentals
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CONTENTSOctober - December 2018
TALK OF THE TOWN
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Oasis De Vie –Continuum of Healthcare Center in the Heart of Ashrafieh
The “Agosto Experience”
The Training and Development Culture in Lebanon
Apave News at a Glance…
Projects on the Run
Regulatory Watch by Apave
Announcements
FOCUS ON Acoustics in Buildings
Introduction to Building Acoustics
Acoustical Flanking Transmission
Acoustics: The Fundamentals
The Science of Controlling Noise
Noise Control Solutions:Acoustic Louvers
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SUSTAINABILITY & ENERGY
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ECOsys: Provider of Renewable Energy & Power Solutions
Towards a Greener and Sustainable Future
Army Solar Project initiation
Solar Photovoltaic System at Ministry of Energy & Water
ABC Verdun’s Solar Photovoltaic System
ARCHITECTURE & TECHNIQUES
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USEK Bassil Medical Building
MONTREAL:A Brief History of the City’s Architecture
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EditorialSAFE AND SOUND ENVIRONMENTSAcoustics are often neglected as part of building design. However, over the last few
years, good acoustics are receiving more attention in buildings. This apparently complex
discipline requires an understanding of how sound is transmitted and the acoustical
properties of materials and products. In this issue, we ask acoustics and audio experts to
give their views on how to reduce noise transmission in buildings to provide comfortable
living and working environments.
To provide the energy market with sustainable solutions, ECOsys is initiating renewable
energy and power solutions for corporate and government institutions as well as homes
in the region. The installation of a solar photovoltaic system at the Lebanese Army
Directorate of Engineering is a milestone and is set to pave the way for eco-friendly
initiatives in the country and region.
Fascinated by the history of architecture? Well, fall is the perfect season to take a stroll
through Montreal to discover the city’s marvelous buildings introduced in this issue. The
Canadian city is intent on preserving its architectural heritage for future generations.
Moving on to healthcare, an aging population has led to an increased need for a
professional healthcare center in Beirut. Zafer Chaoui, President of Oasis de Vie, presents
the Continuum of Healthcare Center in the heart of Ashrafieh, set to open its doors this
year. This issue also highlights the encompassing design elements of the USEK Bassil
Medical Building at Al Maounat Hospital campus in Jbeil, Lebanon, offering a healthy
environment for staff and students alike.
When it comes to stage design, safety is a top concern. This summer, world class DJ’s
performed on stage at the Agosto Experience and for this event the Mzaar Ski resort
collaborated with Apave for stage structure inspection. This assured the safety of the
festivities and thousands of attendees resulting in a highly successful event.
Apave’s Training Department aims to spread the culture of training among companies in
Lebanon and the 2018 Training Catalogue offers training on over fifty topics. Training
is organized at the Apave Training Center, as well as in-house, and tailor-made to suit
the needs of client. It’s time for Lebanese companies to consider training an investment,
rather than an expense.
General ManagerNassib Nasr
Editor in Chief:Rachid Moubarak
Magazine Editors:Tayma AwaissMary Ibrahim
Editorial ConsultantSabina Llewellyn-Davies
Layout & DesignLorem Ipsum
PrintingAl Arz Printing
Edition ApavePublished Quarterly
Distributed byMEDIAREPTel/Fax: +961 495 395www.mediarep.ws
Please feel free to send us your feedback. Our challenge is to highlight topics of importance to our industry and we truly value your comments.
We appreciate your comments at:[email protected] The Building&Co. Team
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Acoustic & Vibration Engineering Gresam Company SAL, established in 1986, and certified ISO 9001:2015, is specialized in Acoustic and Vibration Engineering Solutions and innovative building materials with their applications. Experience and success have allowed Gresam to grow and expand its core capabilities to provide a complete package from acoustical consultancy, design and all the way to execution.
We are committed to provide state of the art acoustical consultancy services within cost effective budgets to our clients. We provide our consultancy services for both new construction as well as a renovation. Whether the project is in the design stages needing a review of potential acoustic issues or there is an existing noise and vibration problem requiring measurements, recommendations, or an expert opinion, we offer a variety of services based on our expertise and field experiences.
Architectural and interior acoustics is one of the major topics to be considered during the design phase of any project and not limited to auditorium, performance halls, multipurpose hall, classrooms, restaurant, hotels, churches, mosques, shopping malls, meeting room, offices, Mass media studio’s and many other public and private spaces.
A Commercial, large residential building or manufacturer plant may have a serious impact on surrounding residential areas; from cooling system, generator room to a large power plant. Our team are able to provide a cost effective noise and vibration solutions during the design phase in order to reduce the noise to the acceptable limit or they can make a noise survey for an existing site in order to check the level of compliance and deliver a solutions.
Gresam Company SAL: Ivoire Center, Block B,Horch Tabet -Lebanon, Tel: 067 9611487+, E: [email protected]
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Talk Of The Town
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TALK OF THE TOWN
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OASIS DE VIECONTINUUM OF HEALTHCARE CENTER IN THE HEART OF ASHRAFIEH
As Board Members of the Greek Catholic Welfare Association of Beirut and its Suburbs, and throughout our various careers and
life experiences, we have always found the need for a healthcare center in Beirut dedicated to the continuum of care.
This center has now become the Oasis de Vie - Continuum of Healthcare Center, the first of its kind in Lebanon with a mission
to provide dignified, compassionate and quality continuum of healthcare services in the center of Beirut.
We take pride in opening our doors during 2018 and welcoming patients and communities who require services that Oasis de Vie
(ODV) shall provide.
ODV is a 131-bed subacute healthcare center established by the Greek Catholic Welfare Association of Beirut and its Suburbs.
The ODV project came to life to fulfill the vision of the Greek Catholic Welfare Association and in accordance with the wish of
the late Mrs. Marie Youssef Aftimos, wife of the late Mr. Nemr Hebbe, who donated the land where the project is built.
ODV is located in a strategic area, surrounded by all the tertiary care centers of Beirut. It is designed in accordance with Joint
Commission International (JCI) and other international quality and safety standards. The center operates in compliance with the
Quality and Safety Accreditation Standards of the Lebanese Ministry of Health as well as JCI.
Regarding its structure, the ODV building was also designed and executed in accordance with internationally recognized
standards and codes pertaining to structural integrity, seismic design, and life and fire safety.
The vision of ODV is to offer high quality, person centered, full continuum of care services to community residents who
require supportive care outside the acute care setting. Its strategy is to take a leading role in the health sector, through enhanced
By Zafer Chaoui, President of Oasis de Vie and Board Member of the Greek Catholic Welfare Association of Beirut and its Suburbs
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TALK OF THE TOWN
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What’s a subacute care?
Subacute care is health care for people who are not severely ill but need:
- support to regain their ability to carry out activities of daily life after an episode of illness
- help to manage new or changing health conditions
- assistance to live as independently as possible
coordination with other healthcare providers in Lebanon and the region, promoting high standard of professional ethics at
competitive prices.
The continuum of services that ODV provides includes subacute and intermediate medical care, Alzheimer’s/dementia care,
palliative care, hospice care, senior care and social care.
Subacute And Intermediate Medical Care
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Recovering from surgery, illness or injury can take a few days
or a few weeks, sometimes even longer. The center provides
primary care during recovery time. The trained staff provides
physical, occupational and speech therapy services for in and
outpatients, as well as other types of healthcare services aimed
at facilitating full recovery.
Alzheimer’s/Dementia CareThe center provides a safe and stimulating environment where
enriching programs and activities trigger joy in the residents
and give them a sense of purpose, while enhancing cognitive
and physical stimulation. For example, an assisted kitchen
was designed especially to stimulate the patient’s memory and
increase their social engagement as they cook their favorite
recipes.
Palliative & Hospice CareThe palliative care services aim to improve quality of life of
patients with life-threatening illnesses and to support their
families.
Every moment of life counts and should be meaningful, quality
being more important than quantity. The center provides hospice
care for people with a short life expectancy who have chosen
to focus on palliative treatment and relief from pain and other
sources of discomfort. The center focuses on the holistic needs of
terminally ill patients: ODV strives to manage their pain and give
them physical, psychological, social and spiritual support in the
final stages of their lives.
Senior CareWith the rising demands and pressures of modern lifestyles,
many families are facing new challenges in the provision of
time and support for their ageing loved ones. ODV is a home
away from home. Residents may be independent or may
need assistance in their daily life. ODV provides the required
services, as well as entertainment through social, fulfilling
activities in which our senior residents are encouraged to
engage.
Social Club & Other ServicesThe day care / social club, located on the 7th floor, provides
entertainment and life enriching experiences. Interactive
programs create opportunities for new encounters and
socialization among patients and residents. Activities that
stimulate their talents and uplift their spirits are carried
out. Recreational programs include social activities, health
awareness lectures, technology classes, entertainment and
games, group cooking, and beauty salon services.
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TALK OF THE TOWN
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Brief about the charitable Greek Catholic Charity Association of Beirut
and Suburbs:
The Greek Catholic Charity Association of Beirut and Suburbs was founded in 1883 with the
aim of providing help to people in need and senior citizens, without religious discrimination.
The Association has its headquarters at Centre Saint-Antoine in Beirut. It is governed by a
Board of members which meets twice a month. The current board is the 39th since 1883.
The activities and services of the Association cover four main areas: medical services, assistance to
seniors, social assistance and support to children.
We were pleased to work with APAVE during the construction of Oasis de Vie Center.
The APAVE team was highly professional throughout the entire project, partnering
with our engineers and other leaders to deploy the best solutions while adhering to
International Standards and ensuring strict compliance with safety standards and
regulations.
IN NUMBERS:- Land area: 1426 m²
- Total built-up area: 14,630 m²
- Number of basements: 6 used for parking
- Number of upper levels: GF + 9
- Investment in the project: $25 million
- Total capacity: 131 beds
THE TECHNICAL TEAM BEHIND THE PROJECT:
- Consultant: 4b Architects – Said J Bitar
- Contractor: Entreprise Andre K. Hakime
- Project management: AOS
- Technical Control: Apave
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THE “AGOSTO EXPERIENCE”
A UNIQUE EVENT IN THE LEBANESE MOUNTAINS
This summer the Mzaar Ski Resort organized the first « Agosto
Experience » on the 11th and 12th of August at Warde slopes
in Kfardebian. It was a challenge by itself to move people up
to the mountains and to make them live a unique experience:
music, dancing & camping at 2,000 m altitude.
A one-of-a-kind experience in Lebanon and the region, the
event’s venue was spread over 30,000m2, with a music stage
structure of an approximate dimension of 33 x 10 x 12 m³.
The stage was the main attraction with its unique design,
inspired by native Indian theme, made of colorful Styrofoam.
A concept 100% Lebanese, designed by Hiba Kilani, and
executed by Julice Siblini Styrofoam. Scaffolding was provided
by Rabih Salem, sound and lighting by Abdo Abdo, and
pyrotechnics by Nazih Tabbara.
Built at 2,000m on a very tricky land, the scaffolding of the
stage had to be 100% safe. As Styrofoam was hanging from
it the strong wind conditions of the area had to be taken into
consideration.
The Agosto Experience hosted around 2,500 visitors and
eleven of the world’s best DJ’s performed on its stage. In order
for it to be a successful event and exempt of any incident,
Mzaar Ski resort collaborated with Apave for stage structure
inspection to assure safety of the festivities.
The “Agosto Experience” made the headlines locally and
worldwide, on all social media; it will hopefully lead to many
more events, up in our mountains.
By Nicole Wakim Freiha, Marketing & Development Manager, Mzaar Ski Resort
Did you know?
Temporary events are considered to attract a very large number
of persons in a limited time frame. For that reason, life-safety
risks have to be taken extremely seriously. Temporary structures
in this kind of events, such as grandstands and platforms, should
be designed and executed following the related safety standards.
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THE TRAINING& DEVELOPMENT CULTURE IN LEBANON
INVESTMENT V/S EXPENSE
From our experience over the last fifteen years in the training
business in Lebanon Apave can clearly state that trainings are
considered as an expense, by most of the companies in the
country.
Besides the in-house training programs implemented by
multinational companies operating in the country, ISO
certified organizations (ISO 9001, ISO 14001, OHSAS 18001,
ISO 22000, etc.) constitute the training and development
programs which the majority of firms prepare (or try to)for
their employees, since it is a mandatory requirement in order to
get and maintain these international certificates.
However, when companies start considering their teams’
training and development as a strategic priority, by tailoring an
adapted training program that meets the company’s goals and
objectives, then these programs become a real investment. This
investment can be measured through pre- and post- training
assessment that will allow companies to evaluate trainings’
efficiency and achieved improvement. Results can eventually be
translated into financial return when considering the value of
saved time, increased productivity and increased sales, etc.
“Better be safe than sorry” is also a good reason for
giving more importance to trainings. When assigning roles and
responsibilities, required skills and competencies for a job must
be evaluated and/or provided by the company’s management,
in order to prevent all kinds of risks (safety, financial, social,
etc.) and their potential impacts on the company’s business.
On the other hand, it is no secret that by investing in employee
training and development, their sense of loyalty is increased
and thus results in lower staff turnover, even if we don’t
expect all employees to stay within the same company their
whole career. Ensuring an employee’s development within the
company is also a mechanism for rewarding employees who
have high potential and/or are high-achievers.
Every year, Apave’s Training Department designs a training
catalogue to meet the market’s needs and clients’ demands,
with clear objectives: spread the “training culture” among
companies in Lebanon and share our technical knowledge with
participants. The proposed trainings are the most diversified on
the Lebanese market and tackle a variety of issues that address
employees, as well as managers and decision makers.
By participating in open training sessions, employees and
managers are given the opportunity to network with their peers
at different organizations and across industries, and discuss
ideas and best practices that they can bring back to their
organization.
From safety lifting operations to food safety and security,
environmental and energy management to human resources
management, leadership and communication to facility
management and accessibility for disabled, all enterprises and
industries can find their needed training from over fifty topics,
detailed in the training catalogue, that are organized at the
Apave Training Center, as well as in-house upon a company’s
request.
While we consider upgrading crucial equipment to stay up-
to-date, we should also upgrade our teams and arm them
with the required skills and competencies to follow new
rules, regulations and trends. This is how we can ensure our
organization stays a winner in this increasingly competitive
world.
Check out the2019 TRAINING CATALOGUEin the Announcement section page
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TALK OF THE TOWN
Trainings2019
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Architecture & Techniques
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MONTREAL
A BRIEF HISTORY OF THE CANADIAN CITY’S ARCHITECTURE
Montreal, one of the greatest cultural Canadian cities, was born more than three centuries
ago. It has been constantly growing and thriving due it’s multi-cultural wealth and diversity.
From the beginning, this island has been of an inspiration to all kinds of artists. Montreal is
all about providing a great quality of life, and what’s better than architecture as a platform to
bring that to its inhabitants.
To discover the city’s architectural beginnings, one should visit the old port neighborhood,
purely influenced by the French colonial architecture and constructed by the first immigrants
that came in the 17th century. The cobblestone streets, the rooftops, and the stone buildings
are of full of charm.
To give you a fast historical timeline about how it all began, every century brought its social
changes, and this had a direct impact on the city’s architecture and precisely its skylines. Three
centuries ago, the clergy were in power and it was the era where the churches dominated
the city skyline. After that started the industrial revolution, and the factories replaced the
churches. The post-World War II era saw the arrival of the commercial corporate high-rises.
And, we reach the here and now, where residential towers dominate the modern Montreal
downtown following an ambitious vision to bring the “Montrealers” back from the suburbs
and into the heart of Montreal again.
The year 1967 was of great importance, not just with Quebec’s quiet revolution starting but
also with the city coming back on the world map due to multiple ambitious projects. The first
to name is the Expo67, a World Fair that is considered one of the most successful of the 20th
century with the most attendees to that date and 62 nations participating. Like every world
fair, architecture was present with avant-garde projects both in conception and construction.
The best examples were the Habitat67 by Moshe Safdie and “La Biosphère” by Buckminster
Fuller. The modern cityscape started taking shape from this era and took off towards the 21st
century where the sense of multiculturalism and diversity is omnipresent. Other projects from
that era that became landmarks are Ludwig Mies Van der Rohe’s Westmount square and his
Nun’s Island gas station.
By Nadim Sioufi, Interior Architect andCo-Founder Of ARC.HIVE
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ARCHITECTURE & TECHNIQUESArchitecture Around The World...
Montreal’s architectural story includes a very honorable
architect Phyllis Lambert who worked closely with Mies van
der Rohe. She has been called the “Joan of Architecture”
both for her fierce advocacy of the importance of architecture
and for her insistence on the preservation of historically
important architecture in Canada and internationally. In
1975, she founded Heritage Montreal, a private non-profit
organization that works to promote and to protect the
architectural, historic, natural and cultural heritage of Greater
Montreal, its neighborhoods and communities. In 1979, she
founded the Canadian Center of Architecture. The center
is an international research institution operating from the
fundamental premise that architecture is a public concern.
Today, where does Montreal stand? We see it present in the
global architecture sphere through local firms selected to win
international awards and competition projects. We see that
the province is investing in talented designers and architects
supporting their presence in world fair exhibitions in Europe
and the world. And the great news is the vision of Montreal
being the future city for Artificial Intelligence. We are
witnessing new developments in the institutional, commercial
and residential sectors. Architecture will flourish and the city
has a bright future. This is what everyone senses now; we all
feel it and want to be part of it.
Nadim Sioufi, Interior Architect and Co-Founder Of ARC.HIVE
Nadim Sioufi is an interior architect with more than 20 years of experience in working and managing
projects under international architectural firms such as Lemay+Escobar, GH+A and Rony Fatté
Architects, before co-founding ARC.HIVE in 2015. Nadim holds a DES in Interior Architecture &
Design from l’Académie Libanaise des Beaux Arts (ALBA), where he graduated with honors. He traveled,
taught and worked in several countries before establishing himself in Canada, where he now lives and
works. In brief, for him, the constraints, specifications or limitations of a space define its very spirit and
singularity. His approach to design is always emotionally charged and inspired by his search for new
knowledge in the design processes, mixed in with an incessant curiosity for new materials and techniques.
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USEK BASSIL MEDICAL BUILDING
DESIGNED TO PERFORM AND INSPIRE
The USEK Bassil Medical Building is the new Faculty of Medicine of the Holy Spirit
University of Kaslik built at Al Maounat Hospital campus in Jbeil, Lebanon. The Medical
Building is set over 6,500m2 and composed of four stories and two basement floors providing
classrooms, laboratories, a digital library, a conference hall, administration offices and a
cafeteria. The building is designed to house three faculties: Medicine, Pharmacy and Nursing
giving students the possibility to experience the nearby hospital’s services during their studies.
The construction was accomplished in December 2017.
The design challenge was to create a building that both performs and inspires. The desired
high environmental performance goals have contributed to shape the architecture of the
building favoring a longer shape along the east-west axis, which provides more potential for
passive cooling strategies. The result is a suitable “L” shape able to maximize the benefit of
passive design strategies for ventilation, heating, cooling and day lighting, as well as providing
panoramic views. In fact, the designed 4-floor glass facade of 580m2 showers the interior with
natural light and provides panoramic views for students, professors and academic staff. A
commodious open-space lobby is designed for gathering and for social interaction. Roofs are
designed to be either green or covered by a layer of an eco-white reflective EPDM membrane
to reduce heat gain during the hot time.
By Antoine Dahdah, PhD in Architecture Design and post-doctorate Master in Sustainable Design
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ARCHITECTURE & TECHNIQUES
Passive Design First, Efficiency AfterFrom the outside you will immediately notice a stunning contrast between the glazed and the stone façade that constitute the
two main volumes of the project, while embracing the building’s main entry and lobby. The 4-floor structural glazed façade of
the academic area deluges the interior with natural light, while shading devices on each level limit heat gain in summer. The
solid 5-floor volume hosts the building’s services and the vertical connections giving place to a scenic atrium allowing airflow
and natural ventilation (chimney stack effect). The atrium conceived as a large solar chimney demonstrates how passive design
techniques have an obvious impact on the thermal performance of the building particularly in mild and humid climate. When
there is no wind, the solar chimney creates a stack effect between the inlet stack (lobby area) and the operable skylight opening
in the roof.
Therefore, the building was designed to use different green strategies with their performance in a larger sense taking advantage
of a building’s site, climate, and materials to minimize energy use. In fact, “Passive design first, efficiency after” was the motto
of the project during the design phase. Being aware of the fact that the importance of passive design cannot be overstated since
it can reduce or eliminate the need for auxiliary heating or cooling, which account for about 40% of energy use in the average
similar buildings in Jbeil, the design team paid most attention to the principles of good passive design to lower heating and
cooling loads, and reduced greenhouse gas emissions for the life span of the building. This was possible to achieve by utilizing
natural sources of heating and cooling, such as the sun and cooling breezes. It is achieved by appropriately orientating the
building on its site and carefully designing the building envelope (roof, walls, windows and floors).
Furthermore, it was also essential to incorporate LED lights along with the latest technology of efficient VRV system for
heating and cooling to minimize electrical and thermal energy consumption. When, for the materials selection, the design team
gave priority for the use of eco-friendly and regional materials not only for the external but also for the interior finishes.
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* The building main entrance is designed to be covered by a green flat roof to control heat gain during summer and to provide insulation efficiency throughout the year.
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ARCHITECTURE & TECHNIQUES
In terms of energy efficiency, a well-designed building
envelope/skin was centralised to minimise unwanted heat gain
as well as heat loss and to protect the building from weather
atmospheric agents: in winter the building collects heat as the
sun shines through south-facing glazed facade and retains it
in materials that store heat, to be delivered later on into the
building. In summer, the designed passive design strategies
are set to reduce temperature fluctuations, improve indoor air
quality and make the indoor drier and more enjoyable to work
and study in.
Although we have used an energy saving glass façade (low-e)
to keep radiation out, it was crucial to shade the glazing
surface of the buildings for when the outdoor temperature is
above the shading line. Outside shading devices were designed
to shade the glass from direct radiation, preventing this way
a large part of the heat from getting in. The location and
dimensions of these outside shading devices were decided
based on accurate calculations; solar diagrams analysis and
shade simulation throughout the year.
When the elevation is not glazed but exposed to the sun,
we have utilized a ventilated facade system developed to
protect buildings against the combined action of rain and
wind by counterbalancing the effects of water beating on
walls and keeping the building dry, with high level aesthetic
characteristics and undisputed advantages of heat insulation
and soundproofing.
Briefly, all efforts in the design stage were set to provide a
healthy and comfortable space for users, while maximizing
operational efficiency and minimizing environmental and
maintenance impacts, reducing operation cost and lowering
the carbon footprint produced by the building. The project
integrates the triple-P concept for sustainability into all
aspects: Progress - People - Planet
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Sustainability Concept: Progress - People - PlanetInnovation and transferability – Progress: The integrated design team has worked together
extensively to assure that the chosen strategies are feasible within budget. Energy simulations
have estimated an energy saving of 60% more than the ASHRAE baseline. The roof-mounted
photovoltaic system will provide a total rated capacity of 30.5 KW, producing 250W, for a total
energy of 46122 KWh/year. The PV solar will be mainly used to reduce the building’s CO2
footprint and spread an ecological message to the wider community.
Ethical standards and social equity – People: A 1,100m2 of outdoor space will be provided
along with a 900m2 suitable garden, encouraging students to freely walk around and enjoy
facilities such as the cafeteria, which they share with the hospital’s visitors. Moreover, to foster a
positive relationship, the project also recommends sharing the garden and conference hall with
the community. For this purpose, an underground tunnel is designed to shortcut connections
with the outside.
Environmental quality and resource efficiency – Planet: The project area was partially excavat-
ed and damaged in the 90’s and left exposed to continuous soil erosion. Thus, it was preferred
to restore this area, rather than consume any other natural space for the hospital campus. The
excavated rocks will be entirely used as stone cladding for the ventilated facades, pavements
and the green terraces required for a gradual integration with the mountain. The project also
promotes measures such as rainwater harvesting and reducing CO2 emissions associated with
transportation, storm water run-off, heat island effect and light pollution
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Antoine Dahdah, PhD, Architect
Antoine Dahdah is an architect and green building consultant, based in Rome, with work expertise in
architecture, green building design, sustainable development and interior design. Holder of a PhD in
Architecture Design and a post-doctorate Master in Sustainable Design both from the University of
Rome La Sapienza, Dr. Dahdah held the position of Assistant Professor at the same university for 3
years in the department of Architecture.
Dr. Dahdah is also a LEED accredited professional endorsed by the U.S. Green Building Council. He
is in continuous collaboration in academia and frequently invited to lecture at universities about green
building design. In recent years, Dr. Dahdah has gained considerable international experience in the
field of sustainable design, being involved in different projects in Europe and the Middle East. From his
design achievements in Lebanon is the design of the USEK Green Masterplan and the USEK Faculty
of Medicine built and completed in 2017 in Jbeil at Al Maounat hospital campus.
ARCHITECTURE & TECHNIQUES
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Sustainability& Energy
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TALK OF THE TOWN
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PROVIDER OF RENEWABLE ENERGY& POWER SOLUTIONS
ECOsys, an ITG (Information Technology Group) company, is a provider of world-class renewable energy and power
solutions, for corporate, government institutions and homes. It offers solar Photovoltaic (PV) solutions, hybrid energy, wind
solutions, and related electronic components. In addition, ECOsys offers DC Telco power solutions as well as industrial
batteries for reserve power and is a division of Midware Data Systems (Midware) specialized in the provision of IT
infrastructure solutions.
The renewable energy market being a young one, our experience in this field has been longstanding and proven in Lebanon
and the Middle East and we have implemented landmark projects. The renewable energy industry is witnessing a strategic shift
to hybrid energy solutions combining multiple sources of power.
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SUSTAINABILITY & ENERGY
ECOsys fields of specialization include:
1. Solar EnergyIn response to the ever challenging energy needs and the global requirements for a sustainable development, we offer custom-
ized and turnkey solar Photovoltaic (PV) solutions, leading to reduced energy costs, based on high-technology products, and a
team of experts in the field.
Our team has the right skills to study, plan, design, and implement the most suitable and cost-effective solar energy solution
for each client, customized to his special setup and needs.
Studying, designing and implementing a photovoltaic solution is complex in terms of combining the different components of
the solution to match the project’s requirements, and it involves the below parameters:
• Optimal module selection: Area/power compromise, efficiency and durability• PV array sizing• Battery bank sizing and design: Optimal battery selection• Inverter selection and sizing• Installation design: Study of the orientation and inclination of the PV panels• Analysis of site conditions and floor loads: Geological surveys, structural analysis, and wind and snow loads• Mounting structure design and selection: Material to be used, proximity to maritime areas• Shading analysis• Cables sizing and design• Protection equipment including arrestors, breakers and residual current devices• System bonding and grounding
• System integration: Hybrid systems, energy management
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2. Wind EnergyWe provide the latest generation of wind turbine generators. Wind power is a clean and sustainable energy source that can be
relied on for the long-term future, and it is the fastest growing source of electricity in the world. Wind is turned into clean and
green energy through the use of wind turbines.
3. Hybrid EnergyHybrid energy is necessary in countries of unstable utility power, where daily grid power interruptions are frequent, and the use
of diesel generators or other fossil-based power sources, is a must. We provide alternative power solutions, through hybrid energy
technologies in order to replace standby power devices that are only used when the primary source fails.
Designing a hybrid energy system, addressing each customer needs, is complex and requires the proper management of multiple
and available energy sources in addition to the grid power, such as generators, batteries, solar systems, etc.
4. DC Telco Power SolutionsWe provide a comprehensive range of direct current (DC) power solutions addressed to the Telco industry, which requires the
highest levels of quality and reliability.
We have successfully implemented a large number of DC stand-alone power systems in different types of Telecom sites includ-
ing telecommunication towers and many others, throughout multiple locations in Lebanon. The excellent performance of such
sites is due to the high standards used in the implementations in terms of products, technology, technical skills, and procedure.
About ITG
Information Technology Group (ITG) is a Lebanese holding company. We combine an array of autonomous affiliates dedicated to
providing a large portfolio of solutions and services in the MENA region, in the areas of hardware, system software, and application
software, in addition to building automation and office solutions. Strong with our proven track record and solid partnerships with leaders
in the ICT industry, we can offer the full spectrum of solutions to most businesses, ranging from office furniture to the full-fledged data
center, in addition to Cloud-based services. ITG derives additional strength and reach thanks to its affiliation with the HOLCOM group
of companies, which has a 50-year history in diligently serving clients in the EMEA region with its 5,700 professionals.
For more info: www.itgholding.com
ContactsMr. George Geha Mr. Elie Maalouf
General Manager Division Manager
[email protected] [email protected]
+961 (1) 595 502 +961 (1) 595 504
www.ecosys.com.lb www.ecosys.com.lb
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SUSTAINABILITY & ENERGY
TOWARDS A GREENERAND SUSTAINABLE FUTURE
Climate change is impacting our environment. Water and land resources are becoming scarce in Lebanon due to the growing
urbanization placing additional pressure on power production, and supply systems due to higher cooling demand. To
overcome the problems faced by global warming, the Lebanese energy sector should opt for green energy sources.
Renewable energy production is slowly but steadily increasing in Lebanon. Electricity is generated from thermal and
hydroelectric power plants that are not sufficiently meeting the needs of the population. The very high cost of electricity
produced by generators caused by the national power shortage, is one of the three factors of competitiveness of Photovoltaic
energy in Lebanon. In addition to the ideal climatic conditions (300 days of sunshine per year), and the high production costs
of electricity plants in the country, Lebanon has abundant solar resource with high solar irradiance levels.
ECOsys has proudly installed more than 30 PV systems projects across Lebanon, including a 1.09 MWp solar photovoltaic farm
for Zahrani Oil that is generating up to 1,525 MWh/yr.
Zahrani Oil Installations -
Solar Photovoltaic System• 1.09 MWp• 8,000 m2• 1,525 MWh production/yr• 1,230 tons CO2 offset/yr
ECOsys aims to further its projects in order to let Lebanon rely on renewable energy to decrease the emission of greenhouse
gases thus taking action towards a greener Lebanon, and a sustainable future.
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ECOsys IMPLEMENTS ARMY DIRECTORATE SOLAR PROJECT
ECOsys implemented a solar photovoltaic system at the Lebanese Army Directorate of
Engineering. The clients were seeking an environmental friendly approach that could cover
their energy consumption while using sustainable and clean energy.
The executed solar system was completed in February 2018 and covers one of the rooftops
of the facility. It has a total capacity of 155.76 kWp, and is expected to produce 238.870
megawatt-hours of energy yearly, leading to a total saving of 155.265 tons of CO2 per year.
The implementation was done by an ECOsys team of 20 specialists, consisting of engineers
and technicians. The main challenge of the project was to esthetically design and integrate the
PV system, as well as the distance between the connection point and the rooftop installation.
Hopefully, this fruitful green experience will pave the way for new eco-friendly initiatives
among other Lebanese Army directorates.
About the Lebanese Army Directorate of Engineering
The Directorate of Engineering was established on April 15, 1977 and was located in Bayda
Building, Ain El Remmene. It was later transferred to Youssef Osta Barrack in Kfarshima as of
January 20, 1982.
For more info: www.lebarmy.gov.lb
Lebanese Army – Solar
Photovoltaic System• 155.76 kWp• 1,200 m2• 238.870 MWh production/yr• 155 tons of CO2 offset/yr
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SUSTAINABILITY & ENERGY
ECOsys SOLAR PHOTOVOLTAIC SYSTEM AT MINISTRY OF ENERGY & WATER
In November 2017, ECOsys implemented a solar photovoltaic (PV) system at the Ministry of
Energy & Water. The solar system covered the rooftop of the Ministry’s building in Corniche
Al Nahr, with a total capacity of 135.3 kWp.
The Ministry of Energy & Water, represented by the Lebanese Center of Energy Conservation
(LCEC), is the leading supporter of renewable energy projects in Lebanon that encourages
and incentivizes the private sector in adopting renewable energy.
Rani Al Achkar, Director of Engineering and Planning at LCEC, stated that “the main
objective of this project was to showcase a Ministry that leads by example and to set a path
for sustainability in public buildings in Lebanon, as it’s a first in 10 solar PV projects in public
buildings initiated by the Ministry of Energy and Water and implemented by LCEC.”
The system is fully operational since the beginning of January, and is expected to produce
198.891 MWh of energy yearly, leading to a total saving of 130.16 tons of CO2 per year.
The implementation was done by ECOsys team which consists of twenty engineers and
technicians. The work done during the bidding phase was very interesting and challenging as
the project required a lot of optimization in order to meet the client’s requirements. Now that
the drawings were turned into reality, we are very proud and satisfied with the results. The
main challenge of the project was to esthetically design and integrate the PV system within
the existing crammed rooftop of 830 m2 surface area, which led the team to combine two
different types of mounting structures to fit the total requested capacity.
The project includes:
• Solar panels that have an efficiency of 19.3%• Inverters that are 20 kW with an efficiency of 98.1% • A mounting structure
• A monitoring system
About the Ministry of Energy & Water
The Ministry of Energy & Water supervises the power and water sector in Lebanon,
addressing the issues of water, electricity, oil, minerals, mining and extracting.
For more info: www.energyandwater.gov.lb
Ministry of Energy & Water - Solar Photovoltaic System• 135.3 kWp• 700 m2• 198.891 MWh production/yr• 130 tons CO2 offset/yr
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ECOsys INSTALLS SOLAR PHOTOVOLTAIC SYSTEM AT ABC VERDUN
In February 2017, ECOsys, signed a deal with ABC Verdun to install a solar photovoltaic (PV)
system over part of the Mall complexes to cover their energy needs. ABC Verdun needed an
energy source, along with EDL and diesel generators, to power their facilities.
Just three months later the system was operational as the inauguration of ABC Verdun mall
was approaching.
The implementation was done by an ECOsys team of specialists, consisting of engineers and
technicians. The main challenge of the project was to esthetically design and integrate the PV
system into the fine architecture of ABC Verdun mall.
ECOsys designed a solar system of 51.84 kWp and is expected to produce 72.6 MWh of
energy yearly, leading to a total saving of 57.9 tons of CO2 per year. The system will not only
reduce ABC’s electricity bills, but also raise ecological awareness. It is important to add that
the estimated payback period is less than 5 years.
ABC Verdun is proud to embrace the solar energy trend, and help reduce the pollution in our
country. This project is very important to our environment and nature. The beautiful design
and accurate execution of ECOsys helped achieve an environmental contribution.
ABC continues to incentivize other businesses to adopt smart ecofriendly solutions, adding to
the fact that it is not the first time ABC cooperated with ECOsys for solar PV systems.
ECOsys’ continuous follow-up and effort to solve the technical and esthetic challenges that
they faced, was crucial to finalize the project within the assigned deadline.
About ABC
Since 1936, ABC Group has been setting the standard for leisurely shopping in Lebanon,
having established itself as a pioneer in the Retail Industry. The first retail store to introduce
the mall concept to the Lebanese market, ABC has been a shopping destination for over
seventy-five years with it’s blend of retail and entertainment attracting more than 11 million
visitors per year. ABC Group operates more than 57,000m2 of Gross Leasable Area (GLA)
including two flagship department stores in prime locations, Dbayeh and Achrafieh–the latter
being the region’s first open-air mall to meet international standards.
In 2017, ABC inaugurated a new mall in Verdun that is almost double the group’s GLA, with
a total of 107,000m2 square meters. ABC Verdun is conceived as a prime urban retail and
entertainment destination.
For more info: www.abc.com.lb
ABC Shopping Center Verdun -
Solar Photovoltaic System• 52 kWp• 324 m2• 72.6 MWh production/yr
• 57.9 tons CO2 offset/yr
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SUSTAINABILITY & ENERGY
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FOCUS ONAcoustics in
Buildings
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BUILDING ACOUSTICS
AS COMFORT-RELATED BUILDING STANDARDS INCREASE SO DOES THE NEED FOR ARCHITECTURAL ACOUSTICS DESIGN SERVICES
Architecture is all about designing good environments. And, to
create a good environment the acoustics of a building should be
considered during the design phase. Critical choices need to be
made to help to mitigate the effects of noise disturbance that will
have a major effect on the interior, and, ultimately, the wellbeing
of the resident.
Over the past decade, the building sector has seen an increase
in comfort-related building standards determined by laws and
decrees. As a result the demand for architectural acoustics design
services has risen and experts are now in high demand. Acoustic
specialists consider the various factors, which influence the
acoustics of a building, for example large buildings have different
acoustical properties than small ones due to the echo effect.
When considering the acoustics of a building, obviously the first
item to regard is how much sound will penetrate to the interior
from the exterior. Then, the other parts of the building need to be
considered. Depending on the purpose of the room, from a sound
standpoint, the decision is made how to build it.
An architect also needs to make choices on how to keep internal
noise from leaking across the room boundaries to isolate noise.
How often do you go out to relax over a meal in a restaurant but
end up feeling stressed out as you struggle to have a conversation
over the noise of clattering plates, chatter from the surrounding
tables and loud background music? This is especially the case in
old renovated buildings now used as spaces for trendy restaurants.
Old brick and mortar and high ceilings can sound so reverberant
By Sabina Llewellyn-Davies
and as such used to be considered unusable for many
situations. But, acoustic experts can work wonders and re-
purpose such spaces into restaurants and office spaces.
Advances in Electro Acoustic Technology
As owners and designers aim to create good-looking buildings,
they are often unaware of the latest acoustical products,
which can provide superior room acoustics. There have been
vast advances in electro acoustic technology and as a result
architects have more design flexibility. “Most commercial
buildings do not take acoustics into consideration. An
acoustics engineer/specialist is occasionally called upon but
only for specific projects like restaurants, theatres, movie
theaters, concert halls, night clubs, gyms etc. where sound is
inherent to the function itself,” says Hala Rizkallah, architect/
urban planner. “As electro mechanical drawings are now a
required component in the design and permit of every project,
acoustical reports should become a standard consideration
where necessary,”
Through a combination of passive and active acoustics,
architects and acousticians can control the sounds of spaces to
fit any kind of need. And, industry leaders are acknowledging
the need for acoustics in the design of buildings more than ever
which is good news for residents of buildings… and clients of
noisy restaurants.
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FOCUS ONAcoustics in Buildings
ACOUSTICAL FLANKING TRANSMISSION
LIGHTWEIGHT FAÇADESAND IMPROVEMENT METHODS
The sound insulation between spaces can often be limited by
the flanking transmission of the curtain wall elements of the
façade. Glazed curtain walling is used for many commercial
and residential projects; it is important to understand the
limitations to sound insulation that the curtain walling
introduces. In this feature, common types of curtain walling
systems and the associated flanking paths are described,
along with typical performance achieved and methods for
improvement. A case study is included to demonstrate how
site measurements can vary with possible improvements on
the flanking paths.
The principle of a curtain wall façade is easy understandable
if we look at Fig. 1. Curtain walling is a non-structural system
that weatherproofs the outside of buildings and supports
no load other than its own weight and the environmental
forces which act upon it. The framework has vertical
elements known as mullions and horizontal sections known
as transoms fixed on the concrete structure of the building,
very often the floor slabs. Mastering the acoustical flanking
transmission is one of the major acoustical topics that have to
be mastered when dealing with this kind of construction.
By Paul Ghanimeh, Founder & Co-Owner,G Universe Sarl
Figure 1: Principle of a curtain wall façade
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Flanking Paths The flanking paths for sound to pass from one space to another can be considered to be any
route other than through the separating element. For most scenarios this can be broken down to
be the sound through the glazing, through the curtain wall sections (mullions or transoms) and
the method of sealing between the curtain wall sections and the main separating element (floor
or partition). These are shown in Figure 2.
When considering vertical sound insulation through a floor, there is also the additional path of
sound flanking through common mullions, which are not split at the separating floors. This is
shown in Figure 3.
Lightweight FacadesThe acoustical power radiated by the glazing is much smaller than the power radiated at the
linear junction between façade and partition due to the joints between glazing and profile. This
applies to classical glazing and therefore the connection between facades and partition be it
horizontal or vertical for both lateral or vertical flanking is the weak point of interest.
From an acoustical point of view, there are two different situations of curtain wall facades:
Figure 2:Plan view of flanking and direct paths for sound transmission
Figure 3:Section showing the flanking path via a continuous mullion
One-piece hollow section Independent frames
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FOCUS ONAcoustics in Buildings
Improvement of Lateral InsulationDifferent technical solutions are available to improve the lateral acoustical insulation especially
to improve hollow tube-profiles.
Filling the ProfileDifferent fillings are used in practice; the most common are sand, mineral wool or material
combining mineral wool and damping material. Filling the profile with sand doesn’t look as a
long-term fitted solution because of the presence of small holes needed for hygrometric reasons
in the profile. Filling with mineral wool is a good solution, but, few data is available for the Dnf
value for the same profile with and without mineral wool. Filling with a material combining
mineral wool and damping material is probably the best filling solution.
Figure 4: reference case of single aluminum mullion of 2.5 mm thickness presenting Dnf (C;Ctr) = 44(-4;-4) dB
In a one-piece hollow section, the system consists of a junction of a partition with for hole
tube-profiles and the flanking transmission index can be drastically limited. Dnf,w = 44 dB
(-4,-4) has been measured for a 2,70 m height vertical profile of 2,5 mm.
An independent frames system consists of separated “halve” profiles assembled on the con-
struction site. The lateral insulation index of such a configuration is much higher because of the
separation in the profiles. Such façades can insure a measured Dnf,w = 54 dB (-1,-6), for a
2,70m height vertical profile of 2,5mm thick aluminum profile of 65 mm large has for instance
been measured.
Having double separated (halve) profiles is the most efficient acoustical solution in projects with
high sound insulation requirements and possible partitions at each façade module; however,
such a solution has an influence on the “industrial” preparation of the façade.
That means each module has to be prepared separately and assembled on the construction site.
This article focuses on the single mullion one piece hollow section which is more frequently
used and present possible means of improving the lateral flanking acoustical performances.
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Figure 5: Lateral insulation index of a single aluminum profile filled with mineral wool and damping material 4 kg/m² presenting Dnf (C;Ctr) = 47(-1;-4) dB
Figure 6: Lateral insulation index of a single aluminum profile filled with mineral wool and damping material 4 kg/m² and 2 mm thick steel sheets presenting Dnf (C;Ctr) = 50(-1;-4) dB
The test result shown in Fig.5 gives a Dnf, w = 47 dB (-1,-4) when we fill the single profile with
a complex of mineral wool and a 4 kg/m² viscoelastic layer. The effect of filling with such type
of material is double. It makes the profile heavier and it damps the vibration of the profile. How-
ever, the effect is not always 100 % efficient because of the eventual presence of stiffeners inside
the tube which makes the contact between the damping material and the metal stud sometimes
difficult.
Profile CoverCovering the metallic stud is also a good solution (see Fig. 6).
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FOCUS ONAcoustics in Buildings
Figure 7: Comparison of Dnf,w values of the various junction paths
It should be done with a damping material to reduce the vibration of the profile combined with
an “esthetic” layer, which is often a metal sheet (galvanized steel or aluminum) or a plaster-
board panel. Figure 6 shows a Dnf,w = 50 dB (-1,-4) for the same profile as in Fig. 5 covered
by a 4 kg/m² damping material and a galvanized steel sheet of 2 mm thick.
The sound insulation between spaces can often be limited by the flanking transmission of the
curtain wall elements of the façade. If the Dnf,w values for the system are known, the on-site
performance can be predicted, however test data is often not available until suppliers are con-
firmed.
Initial estimates of the flanking performance can be made using typical performance figures, but
these must be used with caution, as there can be significant differences in performance between
two curtain wall sections, which have the same dimensions. It is vital to appreciate the details of
the proposed system and use suitable test appropriately in order to reliably predict the potential
sound insulation performance notably affecting both outside to inside noise transmission as well
as lateral and vertical sound insulation levels requirements.
Effective Flanking Sound InsulationA comparative analysis in Fig. 7 below shows the performance difference in the flanking sound
insulation between untreated single mullion system and improved treatments shown here
reveals that significant improvements can be obtained ranging between 3 to 10 dB in the broad
frequencies between 600 to 5000 HZ can be obtained mostly the major enhancement in the
critical medium frequency corresponding to the mullion sound resonance. Low frequencies are
less affected by this improvement as they depend more on the vibration velocity damping which
is not affected by mineral wool or external lining of the mullion at the junction.
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44
ACOUSTICS
THE FUNDAMENTALS
When considering acoustics, sound comes first to mind. A vibration that propagates as an
audible wave of pressure through the air or another transmission medium (water, gas, wood,
glass) except void. For humans, the reception of such waves and their perception by the brain
creates sound. Sound is characterized by its frequency or wavelength, pressure level, speed,
and duration. The frequency is the property of sound that determines the pitch of the sound.
It is the speed of vibration of air pressure or number of wave cycle that occurs in one second
and is measured in Hertz (Hz).
Sound pressure level (SPL) or amplitude is the property that determines how loud the sound
is. It is the size of the vibration, the difference between the pressure caused by a sound wave
and the ambient pressure of the medium the sound wave is passing through. The amplitude
can be controlled by controlling the volume of the radio for example. Sound level is expressed
in decibels (dB) which is logarithmic, thus they should be converted to linear scale before
manipulating them.
If the difference between two sound pressure levels exceeds 10dB, the level of the highest
noise will hide the lowest ex. 95dB+ 75 dB = 95dB. Adding two sound pressure levels of equal
value will always result in a 3dB increase.
The speed of the sound is mainly affected by the property of the material it is propagating
through as well as the ambient conditions. Duration, the same sound will not be supported in
same way depending of the exposure duration. The duration of a sound usually lasts from the
time the sound is first noticed until the sound is identified as having changed.
By Marybelle Chahine, Electro-Mechanical Engineer, Apave
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FOCUS ONAcoustics in Buildings
Noise In Building Acoustics
The noise is a series of sounds with different frequencies and amplitudes usually unpleasant and
causing disturbance. The range of normal perception for young persons lies between 20 and
20,000Hz and in terms of sound level the lowest variation detected by human ears is around 2
or 3 dB.
In building acoustics, four main noise sources are common:
1. Externally generated noise such as traffic, trains, aeroplanes, neighbors, wind on
the building, rain on the roof…
2. Internally generated noise such as loud conversations, televisions, stereo…
3. Impact noise on the structure such as footsteps, falling objects, furniture
relocation...
4. Noise from services and equipment such as lift, mechanical ventilation, toilet
flushing, lavatory…
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Harmful Noise LevelsThe sound pressure level indicates how loud it is in the room. Permanent exposure to high
sound pressure levels or high sound peaks can over time damage an individual’s health:
• Noise over 150dB causes eardrum rupture
• Noise between 120dB and 140dB is considered painful
• 110dB is considered the average human pain threshold
• Noise between 80dB and 100dB are dangerous and can cause serious damage
after 8hours of exposure.
• Between 60dB and 80dB noises are considered annoying such as baby crying and
conversations in restaurants
• Noises between 40dB and 60dB are fairly quiet
• Between 20dB and 40dB noises are quiet such as whispering and conversation at
home
• Noise below 10dB is barely audible
Noise can be emitted directly through the air, reflected on a partition, transmitted through a
partition, or transmitted indirectly though partitions and facades.
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FOCUS ONAcoustics in Buildings
Sound ReductionThe sound pressure level depends on the distance and the obstacles between the source point
and the reception point. Sound pressure is inversely proportional to the distance from the
source (1/d). In an open field, the sound pressure level is reduced by 6dB when the distance
from the source is doubled.
In buildings we can differentiate between two methods of sound reduction: soundproofing and
acoustic treatment.
Soundproofing RoomsSoundproofing can minimize the level of sound that travels in and out of a room. The acoustic
performance of a room is affected by acoustic properties, such as absorption coefficient, of the
installed material and products, the installation method, and joints between partitions. Three
noise types could be reduced with soundproofing: externally generated noise, impact noise
and noise from services. It is to note that to reduce externally generated noise, the treatment of
facades and partitions is essential.
For simple partitions, the heavier and thicker the partition is the higher sound insulation will
be. As for double layered partitions separated by a gap or, for optimized results, by an insulating
material, the first layer will reflect a part of the noise, the light weighted insulation will absorb
and reduce the amplitude of sound waves and the second layer will reflect a part of the noise to
the insulation to be reduced again and will finally transmit the attenuated noise to the room.
According to the mass-law, the more the insulating material is light weighted the more the noise
reduction will be. Windows, doors and ventilation openings are as well considered as the weakest
points for sound insulation. Double-glazing is particularly effective for windows, especially if
the airspace between the two panes is as wide as possible. Solid-core doors are best, particularly
for those that open on to external areas. All gaps and openings around both doors and windows
should be properly sealed; even the smallest openings can leak significant amounts of noise.
Triple pane windows are not necessarily the optimal solution for sound control: if a triple-
pane window has smaller air spaces between the panes a reverberation in the sound waves will
be created and will amplify the sound level and cancels out any beneficial effects a third pane
provides.
When it comes to impact noise the most efficient noise reduction is to isolate the structural
elements from the finishing materials thus lateral transmissions will be reduced. For noise
generated by equipment the contact points between the equipment and the support will be
transporting noise to other rooms; in order to reduce this transportation, it is necessary to
isolate the equipment from its base and thus limiting the vibrations. They can be reduced by
eliminating the equipment noise or by reducing noise transmission.
Acoustic Treatment Acoustic treatment treats sound reflection within the room and thus increases the absorption in
order to reduce reflected noise. By reducing the reverberation, the acoustic treatment controls
the sound level and makes it more intelligible. The absorption of material is characterized by
the absorption coefficient from 0 to 1. The more the structure is porous the more the material
is absorbent and thus the coefficient is close to 1. The thickness and porosity of the material
increases its acoustic absorption.
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Standards and RegulationsBuilding regulations exist to ensure the safety of people inside the building. High sound
level could have negative influence on human activity; standards and regulations define the
permissible acoustical limits in order to guarantee that the noise level does not cause any
perturbations to the occupants.
The minimum values that should be respected depend of the type of occupancy. Limits
for other occupancies such as schools, hospitals, hotels and offices are defined by different
decrees.
Regulations don’t specify the minimum sound insulation required between two rooms of the
same apartment. The sound insulation between a room in a residential apartment considered
as emission room and another reception room, should be at least equal to the below
mentioned values in accordance with French Regulations:
*A-weighted decibels dB(A) are an expression of the relative loudness of sounds in air
as perceived by the human ear. In the A-weighted system, the decibel values of sounds
at low frequencies are reduced compared with unweighted decibels.
Emission LocationReception room
of a different apartmentRooms
53 dB(A)*
40 dB(A)
53 dB(A)
55 dB(A)
58 dB(A)
Wet areas50 dB(A)
37 dB(A)
50 dB(A)
52 dB(A)
55 dB(A)
Apartment rooms except parking spaces
Parking spaces
In other cases
Common areas in the building
Common circulation inside the building
Emission and reception rooms are only separated by a door
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FOCUS ONAcoustics in Buildings
Lebanese Decree on SoundThe Lebanese Decree 1/52 in its Appendix 10, specifies the permitted sound pressure level
depending on the location of the building:
The sound pressure level shall not exceed 90dB(A) during working hours, the below table
shows the maximum exposure duration to high noises:
Finally, citizens have a right to be protected against noise pollution. Excessive noise can affect
people’s health and quality of life, which is why there are laws limiting the amount of noise
that businesses are allowed to make.
Location7am till
6pm
55-65
50-60
40-50
60-70
45-55
35-45
6pm till 10pm
50-60
45-55
35-45
55-65
40-50
30-40
10pm till 7am
45-55
40-50
30-40
50-60
35-45
25-35
Maximum soundpressure level dB(A)
Downtown commercialand administrative buildings
Residential areas in the city
Residential in villages or next to hospitals
Residential areas near commercialareas or main roads
Residential areas near secondary roads
Industrial Areas
Sound Pressure Level dB (A)
Exposure Duration (hours)
95
4
100
2
105
1
110
0.5
115
0.25
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BUILDING ACOUSTICS
THE SCIENCE OF CONTROLLING NOISE
We’ve all had noisy neighbors at some point in our lives. Whether they are constantly moving furniture around or simply
partying till the early hours of the morning, these neighbors, particularly due to the weak acoustic insulation in dwellings in
Lebanon, are the reasons behind these disturbances.
Building acoustics is a branch of architectural acoustics that consists in controlling airborne and structure borne sound
transmission between the various building partitions. The solution will depend on the characteristics of the sound-emitting
source and what type of space requires sound insulation. For example, recording studios and concert halls will have stricter
noise criterion (NC15-NC20) than restaurants or commercial offices (NC40-NC45). Residential apartments sit somewhere in
the middle (NC30). It is well documented and proven that bad sound insulation (high background noise) reduces productivity
in the workplace and leads to a reduced quality of life at home.
Most of the wall partitions used in buildings in Lebanon are made of plastered CMU blocks. However, they are less effective
in sound insulation and are less resistant to earthquakes than lightweight partitions (although plastered CMU blocks perform
better in the insulation of low frequency noise due to their higher mass). They are also thicker than the drywall alternatives,
which reduces the overall livable surface area and also require more time to build. For larger projects, where every second
and centimeter counts, the choice of building with CMU blocks will have a very large impact on the project completion time
and gained surface area. The downside of lightweight partitions is the material cost per meter squared that is higher than
CMU. The reason why in Lebanon CMU is still the preferred choice over lightweight partitions is due to the cheap labor cost
compared to Western countries.
Regarding the floor and ceiling concrete slabs between the different building floors, very little attention is usually given on
the insulation of impact noise. This can be done by simply placing an anti-vibration mat under the finish surface (tiles, wood
parquet, etc.) in order to decouple the latter from the rest of the building structure.
There are many tools available today to calculate the sound insulation in buildings and help provide valuable data on the
performance of different building elements and types of constructions (lightweight vs CMU, floating floors, suspended
ceilings, etc.) as well as the sound impact of an entire building on its surroundings. Figure 1 and 2 illustrate the sound
attenuation performance of two types of wall partitions, a 10cm CMU block wall and a 10cm gypsum board + mineral wool
partition. Figure 3 shows the impact of a machine room in a building on the building limits. Ultimately, building acoustics are
an important consideration in the design and construction of buildings, and can have a significant impact on residents.
By Fouad Bechwati, Acoustics & Audio Consultants, 21dB
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FOCUS ONAcoustics in Buildings
Figure 1. Sound Reduction from a 10cm hollow block wall
Figure 2. Sound Reduction from a 10cm light-weight partition (Gypsum + Mineral wool)
Figure 3. illustration of a sound Impact of an insulated machine room on the surrounding area of a residential apartment
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NOISE CONTROL SOLUTIONS
ACOUSTIC LOUVERS
Noise pollution can affect both physiological and psychological aspects of the human life;
to create healthy and comfortable environment it is necessary to reduce noise levels with
effective noise control solutions. Acoustic louvers are used when it is necessary to reduce or
attenuate excessive noise. Acoustic louvers suit limited spaces and fit into small areas due to
their thin depth, but, tend to be rather large in surface area.
Acoustic louvers are suitable for the following:
• Building ventilation
• Fresh air intakes for ventilation systems
• Mechanical equipment screens
• Acoustic treatment of movable or fixed access openings
• Cooling tower
• Acoustical enclosure ventilation
• Pump room ventilation
Acousystem Liban design and supply acoustic louvers to reduce noise emissions from
building ventilation systems and roof-mounted plant and equipment. Acoustic louvers permit
the flow of air while shielding the environment from noise. This means they can satisfy a wide
range of performance requirements, such as sound attenuation also in restricted areas, in full
compliance with compatible pressure losses, combined with an aesthetically pleasant aspect.
For example, the Acoustical Louver type: AC-PLUS-1 provides sound reduction, air flow and
pressure drop.
By Eng. Pierre Geara, Chairman of Acousystem/Acoustair Lebanon
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FOCUS ONAcoustics in Buildings
Example of acoustical louver available on the lebanese marketAcoustical Louver type: AC-PLUS-1
600 900 1200 1500 1800 2100 2400
400 550 850 1150 1450 1750 2050 2350 25%
600 1100 1700 2300 2900 3500 4100 4700 33%
800 1650 2550 3450 4350 5250 6150 7050 38%
1000 2200 3400 4600 5800 7000 8200 9400 40%
1200 2750 4250 5750 7250 8750 10250 11750 42%
1400 3300 5100 6900 8700 10500 12300 14100 43%
1600 3850 5950 8050 10150 12250 14350 16450 44%
1800 4400 6800 9200 11600 14000 16400 18800 44%
2000 4950 7650 10350 13050 15750 18450 21150 45%
2200 5500 8500 11500 14500 17500 20500 23500 45%
2400 6050 9350 12650 15950 19250 22550 25850 46%
2600 6600 10200 13800 17400 21000 24600 28200 46%
2800 7150 11050 14950 18850 22750 26650 30550 46%
3000 7700 11900 16100 20300 24500 28700 32900 47%
3200 8250 12750 17250 21750 26250 30750 35250 47%
3400 8800 13600 18400 23200 28000 32800 37600 47%
3600 9350 14450 19550 24650 29750 34850 39950 47%
Net Area (cm2)
Width(mm)Height
(mm)Freearea
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Apave newsat a glance…
Projects on the run
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CHRIST-ROIACCOMMODATION FOR ELDERLY PERSONS
The Christ-Roi ( ) project located in Zouk Mosbeh was established by the
Congregation des Soeurs de la Croix. The project consists of accommodation for elderly
persons, individuals who are not totally capable of self-care and are subject to primary
medical assistance. The project also features an adult day care center.
The project is an extension of an existing building and is comprised of
Bloc A: Ground Floor and 2 Upper Floors.
Bloc B: 2 basements, Ground Floor and 3 Upper Floors.
The project is currently under construction and is subject to technical control under the
Decree #7194 related to public safety.
APAVE’s mission is to ensure fire and life safety in the building as well as structural stability of
the building including seismic design.
APAVE NEWS AT A GLANCE
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APAVE PERFORMANCE TESTS
THE WASTEWATER TREATMENT PLANT CHEKKA. SUEZ-LIBAN
APAVE’s mission was to analyze the water flow at each stage, and then to verify all measuring
instruments and flow meters, assess sound levels and pollutants inside the plant and in
property limit, and maintain a performance test of the deodorization tower.
Water analysis:
A simultaneous assessment of the water and sludge treatment was carried out for seven
consecutive days during the summer period. At each sampling point an average daily sample
was taken each day and sent to be analyzed by different laboratories.
Electrical measurements:
The assessment of the electrical measurements was carried out for two consecutive days
during the summer period. It was held at the Low Voltage switchboard, and at all the main
electric boards (pre-treatment, oil treatment, pumping, sludge treatment, ventilation and
deodorization…).
Consumption of reagents measurements:
The consumption of reagents was counted daily either from the values recorded on the
supervision after verifying their authenticity, or by direct measurements on each distribution
station. This consumption was calculated per m3 of treated effluent.
Acoustic and ventilation measurements:
APAVE’s service aims to assess the risk existing in the different areas of the plant and to
validate the performance of the installation. These measurements took place at the limit of the
plant in four points defined by the client, and inside the plant at the 5 premises specified in a
common agreement between the consultant an APAVE specialist.
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AFNOR MIDDLE EAST Certification Body
AFNOR MIDDLE EAST is the subsidiary of the international group AFNOR.
Domain of activities:Certification (ISO 9001, ISO 14001, ISO 22000, ISO 50001, OHSAS...)
Training
Social Responsibility of Organization (SRO)
Standards & Reference Books
Service Quality
AFNOR MIDDLE EASTNohra Bldg., Furn El Chebbak, PO Box: 16-5806, Beirut Lebanon - Tel: +961-1-295010, Fax: +961-1-295145
www.lb.afnor.org - [email protected] - LinkedIn: AFNOR Middle East
AFNOR MIDDLE EAST operates in the following countries:Lebanon Egypt Syria GCC Jordan Iraq Yemen Sudan
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REGULATORY WATCH BY APAVESTAY INFORMED ON THE LATEST STANDARDS AND REGULATIONSWITH APAVE
Security on the Internet and other networks is a subject
of growing concern. Organizations around the world, in
both government and industry sectors, are seeking ways
to address and manage cybersecurity risks, including via
baseline cybersecurity measures that can be implemented
as requirements or guidance.
This document provides background on why having a
risk-based, prioritized, flexible, outcome-focused, and
communications-enabling framework for cybersecurity
is important. It then describes the objectives of a strong
cybersecurity framework and includes mapping to existing
standards that can be used to achieve these objectives.
When it comes to recruitment, finding the right person
for the job not only fills an employment gap, it can have
a significant impact on the organization as a whole.
Recognizing this, HR departments are now often
strategic partners within a company, so measuring the
impact of their expertise not only demonstrates their
value, but allows for continuous improvement as well.
Recently published, ISO technical specification ISO/TS
30411:2018, Human resource management – Quality
of hire metric, identifies metrics that can be used to
evaluate the link between the new person’s work and
the success of the organization.
Iso/Iec Tr 27103:2018
Standard On «Information Technology -
Security Techniques - Cybersecurity And Iso
And Iec Standards»
Iso/Ts 30411:2018,
Human Resource Management –
Quality Of Hire Metric
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Maintaining a high level of customer satisfaction is a significant challenge for
many organizations. One way of meeting this challenge is to put in place and use
a customer satisfaction code of conduct. A customer satisfaction code of conduct
consists of promises and related provisions that address issues such as product and
service delivery, product returns, handling of personal information of customers,
advertising and stipulations concerning particular product and service attributes
or performance. A customer satisfaction code of conduct can be part of an effective
approach to complaints management. This involves complaints prevention, internal
complaints handling and external dispute resolution.
This document provides guidance to assist an organization in determining that its
customer satisfaction code provisions meet customer needs and expectations, and
that the customer satisfaction code is accurate and not misleading.
Quality> Iso 10001:2018
Standard On « Quality Management - Customer Satisfaction - Guidelines For
Codes Of Conduct For Organizations »
APAVE NEWS AT A GLANCE
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60
AnnouncementsTRAINING CALENDAR
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ANNOUNCEMENTS
Upcoming
trainings2018
11 12
15 16
17 18
22 24
29 31
1 2
5 6
7 9
12 13
14 16
29 27
COURSE TITLE
Initial Training for Security Officer
Scaffoldings General Stability & Assembly
Intervention en Espaces Confinés
Managing Lifting Operations: Authorization for Riggers - Level 2
Customer Relationship Management
Gaz Combustibles – Installation dans les Bâtiments
On Site Activity for Scaffolding Erection & Inspection
Contracts Management using FIDIC Suite of Contracts
Introduction to Lashing
ISM –ATEX (Level 2)
Leadership
DURATION (DAYS)
2
2
2
3
3
2
2
3
2
3
3
Oct
Oct
Oct
Oct
Oct
Nov
Nov
Nov
Nov
Nov
Nov
MONTH FROM TO
TRAINING
ISO 9001:2015 Auditor/ Lead Auditor Training Course IRCA Certified
Internal Audit of Quality Management Systems
ISO 14001:2015 Management Systems Auditor/ Lead Auditor Conversion Training Course – IRCA Certified
DURATION (DAYS)
5 full days
2 full days
3 full days
October
October
November
MONTH FROM TO
22 26
24 25
14 16
UPCOMING 2018 AFNOR MIDDLE EAST TRAININGS
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62
TRAININGS2019
22 23
5
6 8
21 22
7 8
19 22
4 5
9 10
15
22 23
2 3
16 17
23 24
18 19
25
11 12
30 31
12 13
29 31
26 28
1
11 12
13 14
7 9
COURSE TITLE
Health & Safety on Site: Accident Investigation
Lightning Protection Systems
Implementation of Occupational Health & Safety Management Systems ISO 45001:2018
Confined Spaces
Authorization Certificate for Electrical Safety of Personnel
Scaffolding: Fitting, Inspection and Basis of Design
Health & Safety on Site: Control of Temporary Works hazards
Electrical Installations : Low Voltage
Event Safety & Crowd Management
APAVE SAFETY WEEK : E-Rally
Health & Safety Risk Assessment
Health & Safety on Site: Musculoskeletal Hazards & Risk Controls
Initial Training for Security Officer
Health & Safety on Site: Work Equipment Hazards & Risk Controls
First Aid Rescue Plan Training
Managing Lifting Operations: Authorization for Riggers - Level 1
Fire Safety and Personnel Assistance Officer
Managing Lifting Operations: Authorization for Riggers - Level 2
Fire Safety in Buildings – Decree # 7964
Vertical Transportation System (Elevators)
Accessibility in Buildings
Managing Quality in Construction Projects
Gaz Combustibles – Installation dans les Bâtiments
Facility Maintenance and Management
THEME
SAFETY
AND
SECURITY
CONSTRUCTION
DURATION(DAYS)
2 half days
1 full day
3 half days
2 half days
2 full days
4 half days
2 half days
2 full days
1 half day
2 half days
2 half days
2 full days
2 half days
1 full day
2 half days
2 full days
2 half days
3 full days
3 half days
1 half day
2 half days
2 half days
3 half days
Jan
Feb
Feb
Feb
Mar
Mar
Apr
Apr
Apr
Apr
May
May
May
Jun
Jun
Jul
Jul
Sep
Jan
Feb
Mar
Mar
Jun
Aug
MONTH FROM TO
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TALK OF THE TOWN
63
24 25
13 15
17 18
21 22
28 30
15
19 20
4 6
27 29
11 12
9 10
20 21
4 5
5 6
1
13 15
24 26
17
12 13
2 3
6 8
26 28
17 19
21 23
18 20
COURSE TITLE
Green Buildings
Energy Management Systems ISO 50001:2011
Renewable Energies
Environmental Management Systems ISO 14001:2015
Energy Efficiency in Buildings
Accreditation Standards for Hospitals
Human Resources Management: Workforce Planning
Implementation of Quality Management Systems ISO 9001:2015
Customer Relationship Management
Human Resources Management: Recruitment Process
Human Resources Management: Training & Development
Human Resources Management: Performance Appraisal
Introduction to Project Management
Introduction to ISO/IEC 17025:2017
Basic & Intermediate Food Safety
Food Safety Management Systems ISO 22000:2018
Food Safety Systems Certificate 22000
HACCP Methodology
Time Management
Management Skills
Leadership
Presentation & Communication Skills
Business Etiquette
Building & Implementing Effective Strategy
Conflict Management
THEME
SUSTAINABILITY
MANAGEMENT
FOOD SAFETY
SKILLS
DEVELOPMENT
DURATION(DAYS)
2 full days
3 half days
2 half days
2 half days
3 half days
1 full day
2 half days
3 half days
3 half days
2 half days
2 half days
2 half days
2 half days
2 Full Days
1 half days
3 half days
3 half days
1 full day
2 half days
2 full days
3 half days
3 half days
3 half days
3 half days
3 half days
Jan
Mar
Apr
May
Aug
Feb
Feb
Mar
Mar
Apr
May
Jun
Jul
Aug
Feb
May
Jul
Sep
Feb
Apr
May
Jun
Jul
Aug
Sep
MONTH FROM TO