Passive House Roof Design

If you re familiar with any passive house projects you may be thinking about double stud walls that are a foot thick or regular walls with 6 to 12 inches of rigid insulation on the outside.

Passive house roof design.

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. The individual roof type diagrams show the detail associated with each roof type. Passive house plan pricing. The main diagram below shows how the three passive elements roof wall and foundation link together.

Fink truss attic truss the vaulted roof and the flat roof. 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. There is a certified passive house in the hot and humid climate of lafayette louisiana usa which uses energy recovery ventilation and an efficient one ton air conditioner to provide cooling and dehumidification. A combination of super insulation and excellent air tightness.

Passive house is not just about adding layers of insulation to make a house airtight she says. To be designated as a passive house a building must embody a set. It grew out of the superinsulation movement after all. The walls of this house are 2 8 construction with dense pack cellulose insulation r 27 zip sheathing for the air barrier and 6 roxul insulation r 24 for a total insulation value of r 43.

Click image to expa nd. The irish standard part l 2011 for a traditional roof structure is 0 16 w m2k. Passive house is the world s most energy efficient standard and it s the one we promote it really doesn t cost much more at all to build to this standard and reap the benefits including much lower running costs. This is very close to the passivhaus standard 0 10 0 15 w m2k however it still does satisfy it.

According to leonard designing with efficiencies built into the plans makes the expense of constructing a passive house equal to or less than a code built house. Passive cooling solar air conditioning and other solutions in passive solar building design need to be studied to adapt the passive house concept for use in more regions of the world.