west lcbe - lcri€¦ · lifecycle • welsh species • supply chain • assessment •...
TRANSCRIPT
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WEST LCBE
LCRI Conference - 18th November 2014
Amalia Banteli
Angela Ruiz del Portal
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- WEST LCBE Courses
- Welsh Timber course. Snapshot
- Upcoming course: Energy simulation
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- Low Carbon Building Principles
- Welsh Timber in Building
Construction: Myths & Facts
- Energy simulation:
Building and urban scale
Courses
AVAILABLE
until
END 2014
1 Credit units
= 10 hours
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Welsh Timber in Building
Construction: Myths & Facts
Snapshot
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Course Outline
Section 1 Section 2 Section 3 Section 4 Section 5
• Introduction
• Myths & Facts
• Timber in History
• Situation today
• Benefits
• Considerations
• Why local timber
• Sustainable
lifecycle
• Welsh species
• Supply chain
• Assessment
• Applications
• Cladding and
Carpentry
• Components
• Structures
• Case studies
• Contemporary
timber building
• Case studies
• Final
assessment
Self Study + Course delivery = 10 hours
Flexible completion - suggested 5 weeks / 2 hours per week
Available until End of 2014
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Course Outline
Section 1 Section 2 Section 3 Section 4 Section 5
• Introduction
• Myths & Facts
• Timber in History
• Situation today
• Benefits
• Considerations
• Why local timber
• Sustainable
lifecycle
• Welsh species
• Supply chain
• Assessment
• Applications
• Cladding and
Carpentry
• Components
• Structures
• Case studies
• Contemporary
timber building
• Case studies
• Final
assessment
Self Study + Course delivery = 10 hours
Flexible completion - suggested 5 weeks / 2 hours per week
Available until End of 2014
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Welsh homegrown timber (softwoods) is not dense
enough to be suitable for construction.
Wales has one of the most favourable climates in
Europe for growing conifers.
Nowadays in Wales we can construct up to eight
storey buildings using timber construction systems.
Myths & Facts
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Environmental Benefits
• Low carbon footprint
• Low energy intensive
• Less and recyclable waste
• Renewable resource
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• High load bearing capacity:
– Light weight - Reduced foundations and transportation costs
• Prefabrication – reduced building costs (speed)
– Not weather dependant
– Ease of erection
• Durability
Economic Benefits
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• Maintenance of traditional skills and knowledge
• Healthy environment
– Low allergen*
– Low toxin material*
– Hygroscopic material - Stabilises indoor humidity
*in its natural state
Social Benefits
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Welsh Species
Douglas Fir Larch Pine Sitka Spruce
Ash Beech Oak Sweet
Chestnut
Sycamore
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Considerations
• Characteristics of different species
• Moisture content
• Mechanical Performance / strength
• Natural Durability
• Design requirements
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• Timber components
• Structural systems
• Timber cladding
• Carpentry
Timber Applications
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• Post and beam
• Glulam
• Open and closed panels
• Solid wood panels
• Ty Unnos
Structural Systems
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Post and beam
Image by MIT
Structural Systems
- load bearing post and beam
- many options for wall infill
components and external
cladding.
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Images by Oakwrights
Structural Systems
Newby
– Exterior natural York stone
– Thatched roofs in a traditional
style
– Oak post & beam frame
– Softwood enclosure panels and
cut roof
– Self build process
– 4 days: main frame completed
Post and beam: Case study
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Image by www.alibaba.com
Image by www.fordaq.com
Glulam*
– Smaller pieces of timber
glued together to make bigger
and stable elements
– Benefits:
strength,dimensional stability,
large section sizes
* (Glued laminated timber)
Structural Systems
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Glulam
Image by archiexpo.com
Image by dezeen.com
Structural elements:
beams and columns,
rafters,
trusses,
arches,
curved portals,
arched bridges,
curved beams
Case studies
Structural Systems
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Image by WKW
Image by tinyhouseblog.com
Structural Systems
• Open panels:
- Main structure: softwood studs
- Bracing: rigid boards such as OSB
- Nailed together and filled with
insulation
• Closed panels (e.g. SIPs):
- Similar to open panels
- Prefabricated with:
- insulation
- finishes
- services
Open and close panels
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Closed panels: Case study
Images www.feildenfowles.co.uk
Structural Systems
Ty Pren. Passive House: Trallong, South Wales
– Structural system: SIPs
– Larch cladding: sourced and felled from the client’s
estate 2 miles away
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Closed panels: Case study
Image www.feildenfowles.co.uk
Structural Systems
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Image by OpenCourseWare
Structural Systems
Image by commons.wikimedia.org
- Formed by parallel softwood lamellae
- Joined together with nails or
hardwood dowels
Solid wood panels:
Dowellam / Brettstapel
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Solid wood panels: Case study
Images by WKW
Structural Systems
Visitor Centre Coed y Brenin
– Brettstapel panels out of
Welsh grown softwoods
– First example of this type of
application of Welsh
softwoods
– Sitka spruce and Douglas fir
Brettstapel lamellae joined
using ribbed beech dowels
– Douglas fir cladding
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Structural Systems
Image by Jamesh251 Image by coedcymru.org.uk
- Hollow box beam,
ladder truss, wooden
or steel connectors
- Ty Unnos panels can
provide wall, floor and
roof sections.
- The system was
developed to utilise
Welsh grown softwood in
many types of buildings.
Ty Unnos
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Image by Coed Cymru
Image by Coombs Jones architects+makers
Structural Systems
The Long House
– Passive house in Ebbw Vale
– Code for Sustainable Homes 5
– Ty Unnos panels made from
locally grown softwood Sitka
spruce
– Chestnut cladding
– Support to local economy
Ty Unnos: Case study
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Collaborations
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Course Outline
Section 1 Section 2 Section 3 Section 4 Section 5
• Introduction
• Myths & Facts
• Timber in History
• Situation today
• Benefits
• Considerations
• Why local timber
• Sustainable
lifecycle
• Welsh species
• Supply chain
• Assessment
• Applications
• Cladding and
Carpentry
• Components
• Structures
• Case studies
• Contemporary
timber building
• Case studies
• Final
assessment
Self Study + Course delivery = 10 hours
Flexible completion - suggested 5 weeks / 2 hours per week
Available until End of 2014
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WEST Course:
Energy Simulation.
Building & Urban Scale
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• Existing energy simulation tools are predominantly for single buildings.
• There is a gap on early stages design modelling tools.
• Preliminary understanding of energy efficiency of buildings at an early
stage is both powerful and essential for low-carbon design.
• Tools required should be: usable, simple, accessible, flexible and
validated.
Efficient Planning Tools
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Image by RMCAANA
Software
VIRVIL plugin – Bridging Sketchup and HTB2
Aim of the plugin:
• Early stage thermal modelling
• Viable large scale thermal analysis in the built environment
• Usability, accessibility, simplicity and compatibility
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Software
Flow Diagram of the Virvil Tools
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Software
Visualising thermal calculations results
• Excel spreadsheets (with various
different tabs and graphs)
• The results are also embedded
directly into the 3D model. Figures
of the calculations can be found
without leaving the Sketchup
interface
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WEST Course
Energy Simulation: Building & Urban Scale:
• Conduct early stage energy assessment of designs
at both building and urban scale
• Run the plugin modelling a building with/ without
urban context
• Explore the solar potential on facades and impact
of shading devices through the use of the plugin
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WEST Course
Course outline
Section 1
Online
Section 2
Online
Section 3
Face to face
Section 4
Online
• Introduction to the
plugin
• What the plugin can
predict
• What the plugin can
test
• Installation of
software
• Exercise on basic use
of the plugin
• Assessment 1
• Face to face
workshop
• Working on your own
model
• Report writing
(Assessment 2)
• Report upload on
WEST Learn
• Feedback on the
submitted report
• Previous examples of
plugin use
• Your feedback about
the course
Section 3: Face to face session available:
Swansea: 25th November, 8.30 - 12.30
Llandudno: 27th November, 12.30 - 16.30
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Thank you!