Passive House Roof Design

Passive house has a reputation for requiring ungodly amounts of insulation.

Passive house roof design.

Click image to expa nd. Fink truss attic truss the vaulted roof and the flat roof. All mbc passive roof systems deliver a u value of 0 10w m2k. 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.

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. The individual roof type diagrams show the detail associated with each roof type. To be designated as a passive house a building must embody a set. 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.

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 is not just about adding layers of insulation to make a house airtight she says. The main diagram below shows how the three passive elements roof wall and foundation link together. Passive house plan pricing.

A combination of super insulation and excellent air tightness. 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. We do however also offer a code plus version of our house plans slightly less efficient than passive code plus is perfect for a small urban. It grew out of the superinsulation movement after all.

The irish standard part l 2011 for a traditional roof structure is 0 16 w 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.