The main diagram below shows how the three passive elements roof wall and foundation link together.
Passive house details roof eaves.
Inside your home usually in the attic the eave is the angle where the roof meets the outside wall a good place for insulation as long as it doesn t get into the soffit the underside of the overhang.
This detail shows a masonry veneer wall with the airspace behind the masonry.
For a passive house will typically deliver 1000 w without a problem.
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The lower edge of a roof which projects beyond the face of the wall.
It may seem like a relatively new concept but the first domestic examples of passive house were built in germany in 1990 following the creation of the standard in 1988.
A couple things have to happen to allow for a good detail.
The passive house institute s enerphit criteria for refurbished buildings deals specifically with this issue.
The irish standard part l 2011 for a traditional roof structure is 0 16 w m2k.
Fink truss attic truss the vaulted roof and the flat roof.
To achieve the passivhaus standard passive roofs need high levels of insulation thermal bridges need to be eliminated and the structure itself needs to be airtight.
See more ideas about roof detail architecture details roofing.
Without exception all standard sections and connection details must be planned and implemented so that there is no excessive moisture accumulation on the interior surfaces or in the building component structure.
The architect john milnes baker defines eaves in this simple way.
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Note that the fascia is held back from the face of the wall to allow the air space the ability to vent up into the vented attic.
This is very close to the passivhaus standard 0 10 0 15 w m2k however it still does satisfy it.
Passive house is a rigorous voluntary house building standard that focusses on energy efficiency and reducing the energy needed to run a comfortable home.
All mbc passive roof systems deliver a u value of 0 10w m2k.
Creating eaves is very important.
For the compact service unit to meet the total heat loss floor windows doors roof in addition to the external walls the u value of the wall has to be really low suitable are values.
