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.

Passive house roof design.

The main diagram below shows how the three passive elements roof wall and foundation link together. 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. All mbc passive roof systems deliver a u value of 0 10w m2k. This is very close to the passivhaus standard 0 10 0 15 w m2k however it still does satisfy it.

Passive house has a reputation for requiring ungodly amounts of insulation. 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. Passive house is not just about adding layers of insulation to make a house airtight she says. Passive house plan pricing.

To be designated as a passive house a building must embody a set. 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. The individual roof type diagrams show the detail associated with each roof type. 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. It grew out of the superinsulation movement after all. Fink truss attic truss the vaulted roof and the flat roof. The irish standard part l 2011 for a traditional roof structure is 0 16 w m2k.

Click image to expa nd. A combination of super insulation and excellent air tightness.