Passive House Roof Assembly

Windows and doors are passive house certified come with high solar heat gain 64 triple pane low e coated glazing as well as insulated frames for installed r values of 8.

Passive house roof assembly.

Roof sips can be used for walls but it is a huge time saver to have the recesses in place to allow for splines and the top bottom plates necessary to construct the wall assembly. Layout for roof overhang eave and framing roof overhangs. Because the wall and roof assemblies can be built indoors while your site is being prepared and your foundation is being built because the walls and roof already have the insulation drywall and air sealing and need only on site assembly and windows you save an immense amount of construction time. The irish standard part l 2011 for a traditional roof structure is 0 16 w m 2 k.

The underside of the rafters will receive a smart vapor barrier fabric pro clima intello designed to resist the passage of moisture into the insulated cavities from interior space but still allow the cavities to dry to the inside if necessary. They are typically screwed directly into rafters on 48 centers. Roof sips are cut straight and butt joined. Passive house prefab homes.

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. This is very close to the passivhaus standard 0 10 0 15 w m 2 k however it still does satisfy it. The exterior wall assembly of the passive house in the woods consists of 11 insulated concrete forms icf for structure and an 11 exterior insulation and finish system eifs façade with an overall rvalue of 70. The project demonstrates the model c building system a kit of parts assembly constructed from prefabricated clt building panels the result of a collaboration that unites generate s expertise in mass timber with placetailor s expertise in high performance assemblies including insulation and air sealing that qualify buildings for high performance zero carbon and passive house.