Passive House Roof Construction

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.

Passive house roof construction.

The roof trusses alone cost 20 000. In nova scotia we. And the construction of the roof sheathing and shingling were all more expensive than that of the stock plan house. Passive house la is a project designed by paravant architects and is strategically planned to showcase the back end technologies and benefits of the internatioal passive house standard including home comfort health extremely high efficient energy use and sustainable building practices additionally passive house la is a zero net energy zne home.

Fink truss attic truss the vaulted roof and the flat roof. The roof is constructed of manufactured trusses with loose fill cellulose insulation r 90. The main diagram below shows how the three passive elements roof wall and foundation link together. This is very close to the passivhaus standard 0 10 0 15 w m2k however it still does satisfy it.

The zip sheathing continues onto the ceiling plane of the roof trusses. The irish standard part l 2011 for a traditional roof structure is 0 16 w m2k. The vedag roof waterproofing system ensures both comprehensive weather proofing and passive house standard thermal protection. A breather membrane is secured to the medivent boarding while the internal 12 5mm pro passive airtight board is sealed with airtight tape at junctions ensuring the house is completely airtight and draught free.

35mm timber battens are fixed to the pro passive board to create a service cavity in which electrics and plumbing services can be fitted. The north park passive house is a six unit urban infill condominium on vancouver island bc passive house construction on vancouver island building the first certified passive house on vancouver island a duplex shared with our son mark s family convinced us that the market in victoria was ready for passive house ma. The individual roof type diagrams show the detail associated with each roof type. The joint between the zip sheathing on the walls and ceiling were taped and sealed in order to create a continuous air barrier.

All mbc passive roof systems deliver a u value of 0 10w m2k. Essentially a passive house is designed to be extremely energy efficient so that it doesn t take a lot of power to heat or cool. The carpenter reported that he could have got her the stock plan and all the upgrades to passive house for less than the cost of her roof.