Passive House Roof Design

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Passive house roof design. 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. 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. 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. This is called passive solar design because unlike active solar heating systems it does not involve the use of mechanical and electrical devices.

In most climates an overhang or other devices such as awnings shutters and trellises will be necessary to block summer solar heat gain. This is very close to the passivhaus standard 0 10 0 15 w m 2 k however it still does. The main diagram below shows how the three passive elements roof wall and foundation link together. In passive solar building design windows walls and floors are made to collect store reflect and distribute solar energy in the form of heat in the winter and reject solar heat in the summer.

Fink truss attic truss the vaulted roof and the flat roof. Landscaping can also help keep your passive solar home comfortable during the cooling season. Enjoy discounts on our courses and events membership with ipha and be part of a community of industry leaders. 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.

The key to designing a passive solar building is. Join passive house canada as an individual company or organization and get access to technical passive house resources and forums. A passive solar house requires careful design and siting which vary by local climate conditions. Passive house has a reputation for requiring ungodly amounts of insulation.

The irish standard part l 2011 for a traditional roof structure is 0 16 w m 2 k. All mbc passive roof systems deliver a u value of 0 10w m2k. It grew out of the superinsulation movement after all. Passive house design guarantees fresh air and energy efficiency but also comfortable homes that are built to last.

Passive house is the radical notion that you can reliably and consistently design a building that works for humans explained barry.