komfort houses project

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Denmark's largest development

project within construction withno heating system

In the course of 2007, the rst ground will be broken

on Denmarks largest development project to date

of single-family houses with no heating systems and

with an optimal indoor climate.

The aim of the project is to spread knowledge about

buildings with passive heating and to set the agenda

both for future construction and for the energy po-

licy debate. The project will involve a large number

of stakeholders, so it will also operate as a learning

process.

KOMFORT HUSENE must inspire and be living examp-

les of how perfectly ordinary single-family houses can

be built using the passive heating concept.

KOMFORT HUSENE contain the answers to current

energy and environmental issues:

The energy consumption for heating is close to zero

The contribution to carbon emissions is therefore

very low

Home comfor t, including indoor climate and low al-

lergen content, is high

KOMFORT HUSENE therefore have the potential to

shape the concept of future Danish single-family

houses, focusing on increased comfort and environ-

mental sustainability.

KOMFORT HUSENE will show the way for buildings

with passive heating in Denmark

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Saint Gobain Isover a/s is the instigator of theproject which builds on international experience

KOMFORT HUSENE

in the Skibet area

KOMFORT HUSENE will promote Danish construction

to the world elite within energy-efcient construction while respecting Danish building practice

Behind the initiative is Saint Gobain Isover a/s. In its

capacity as the worlds leading producer of insulation

materials, the ISOVER group has a natural interest in

promoting knowledge of how to reduce a buildingsenergy consumption.

At international level, ISOVER is an active contributor

to many projects using passive heating. Know-how

and experience are harnessed together in the con-

cept of the ISOVER MultiComfort House.

This knowledge is now being transferred to Denmark,

where the aim is to build up a network of architects,

contractors, consultants, standard house builders

and manufacturers of building materials who will

work to spread the passive house concept.

The KOMFORT HUSENE project in the Skibet area is ba-

sed on the company KOMFORT HUSENE A/S, which is

jointly owned by Zeta Invest A/S and Middelfart Spa-

rekasse (Savings Bank). Both have sound experience inthe housing market.

The houses will be designed and built in accordance

with Danish building practice. Sizes are expected to

vary between 170 and 250 square metres.

Construction is expected to start in the third quarter

of 2007, and the houses will be put up for sale at the

end of the exhibition in the third quarter of 2008.

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The KOMFORT HUSENE project is a development of 10 single-family houses grouped in the attractive Skibet area west of Vejle.


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It is hard to conceive of a house without radiators.

After all, they have always been part of our houses.

But KOMFORT HUSENE confound our expectations.

There is no heating system, no radiators, but other-

wise there is nothing out of the ordinary.

What is new is that we are using our knowledge of

well-known principles and the interaction between

the individual structural elements to construct a

house which uses almost no energy for heating, and

has a fantastically good indoor climate.

More thermal insulation

Passive heating works like a thermos ask, in that the

more heat is retained, the less energy needs to be

used for generating new heat. This means that the

insulation has to be thicker than normal, about 300

mm in walls and 450 mm in oors and roof. There

must be no cold bridges.

Windows help control the temperature in-doors

In winter, when additional heat is needed, the sun

will hit the window panes. In summer, they must not

be directly affected by the sun. Large glazed panels

should therefore face south but be recessed under an

overhang, so that only the low winter sun hits them.

The window frames must also be thermally insulating.

Heat recovery and controlled ventilation

The heat in the house is re-used with the aid of heat

recovery and controlled ventilation. To be able to use

this principle fully, it is necessary for the house to be

completely airtight.

It sounds like mumbo jumbo - but the fact is thatKOMFORT HUSENE are built exclusively to well-known principles


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Healthy, fresh indoor climate

A house with passive heating is always warm andcomfortable

A constant temperature all year round of, for example,

22C, fresh air in all rooms at all times and constant

low relative humidity:

This will be a reality in the KOMFORT HUSENE.

Well-insulated and airtight construction and energy-

efcient windows mean amongst much else that an

even surface temperature is achieved throughout the

room and that it is possible to sit near the window all

year round and enjoy the view and daylight without

the discomfort of draughts or cold. At the same time,

the ventilation system ensures that the air in all rooms

is continuously replaced by fresh air from outside.

Controlled ventilation also has a number of advanta-

ges for the indoor climate: dust, pollen and particles

are ltered out of the air, and the automatic extrac-tion reduces moisture and dust, so you do not have to

spend time every day airing the house, but can open

a window when it suits you.

In a house with passive heating there is also less noise

pollution from the surroundings as the efcient ther-

mal insulation and good windows also provide bet-

ter sound insulation.

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The future energy-efcient

and environmentally soundsingle-family house

Energy consumption is rising. Scientists are worried.Increasing carbon emissions threaten to change our

climate.

Politicians are also worried. They have signed the Kyoto

Protocol and are following up with several initiatives.

But how will we achieve the agreed aims? The an-

swer is blowing in the wind, but one thing is certain:

we must all help.

According to Denmarks Energy Strategy 2025, Da-

nes must save up to three times as much energy aswe have done so far through special initiatives.

It will not merely be difcult. It calls for a change of

attitude and for proactive action. Around 40 per cent

of our energy is used in houses. Therefore, it is crucial

to make changes at home.

The KOMFORT HUSENE in the Skibet area are seen as

a beacon. They will let the Danish construction indu-

stry showcase its contribution to meeting the aimsof the Kyoto Protocol.

Knowledge and expertise concentrated in a dynamic

enterprise, a nucleus in which for the rst time tech-

nologies and methods have the opportunity to work

together on a large scale and be part of the house

without radiators.

KOMFORT HUSENE also point the way for national

and local politicians. Here they can see a whole hou-

sing development with no heating systems, and get

an idea of the route we can take to protect the en-vironment for the future. They can be inspired and

include the concept in legislation and local planning.

KOMFORT HUSENE are a vision of the future for

single-family houses, helping to reduce carbon emis-

sions, cutting almost all heating costs and providing

an optimal indoor climate.

KOMFORT HUSENE will inspire us to save energy

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The beginning of a new era

The coming two years will confound our usual expec-

tations about energy consumption of single-family

houses.

During this period, the KOMFORT HUSENE will be

built in the Skibet area without heating systems in a

collaboration between Danish architects, consultant

engineers, standard house builders and manufactu-

rers of building materials.

The parties will collaborate throughout the project

and form networks. Development and learning pro-

cesses will characterise the process, and entirely new

methods and market opportunities may arise.

10 different houses

The project imposes special requirements for active

participation. Therefore, the manufacturers/contrac-

tors who are to build the houses will be selected by

pre-qualication. There will be 10 different houses

resembling those which Danes prefer today. They will

be built in accordance with Danish building practice.

Attractive plots

The total of 10 houses will be built in an attractive

area in Skibet west of Vejle where the rural sur-roundings with hills and lakes might have been

created for a type of house that protects the environ-

ment. The development is 500 metres from a school

and 6 km from Vejle centre.

Milestones in the project

1st quarter 2007: Plots purchased.

2nd quarter 2007: Pre-qualication.

3rd quarter 2007: Houses built.

1st quarter 2008: Shells exhibited focusing

on structures and details. 2nd quarter 2008: Houses completed.

3rd quarter 2008: Houses exhibited

and sold.

The KOMFORT HUSENE are expected to be ready inthe third quarter of 2008

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KOMFORT

Saint-Gobain Isover a/s stermarksvej 4 6580 Vamdrup Telefon 72 17 17 17 www.isover.dk

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komfort houses project

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