Passive House Roof

Passive house wall capping profiles.

Passive house roof.

The following are six 6 estimates of the passive house premium from five 5 passive house builders. To be designated as a passive house a building must embody a set. 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. Heat recovery ventilation allows for air to remain comfortable and not stuffy which is a common concern amongst passive house builders.

Passivhaus is a voluntary standard for energy efficiency in a building which reduces the building s ecological footprint. This prevents heat loss and shows that air isn t leaking in your home. 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. 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 m 2 k. In nova scotia we have a 10 000 rebate incentive for energy efficient homes so we can build a passive house for the same cost as a code built house. With a heating demand of only 8 kwh m a it is uniquely energy efficient. The carpenter reported that he could have got her the stock plan and all the upgrades to passive house for less than the cost of her roof.

The individual roof type diagrams show the detail associated with each roof type. 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. Justin o keefe 15. Click image to expa nd.

Roof build ups for passive houses. However the premium for going passive seems limited to the super insulated nature of the building s six sides four walls roof and floor. Passive house principle sketches special constructions. It results in ultra low energy buildings that require little energy for space heating or cooling.

Passive house principle sketches special constructions. The roof trusses alone cost 20 000. A similar standard minergie p is used in switzerland. The doors of this new building were open to the public on 14 and 15 november within the framework of the international passive house days 2015.

And the construction of the roof sheathing and shingling were all more expensive than that of the stock plan house. 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 m 2 k however it still does satisfy it. To meet passive house standard a home must not have an air change rate of more than 0 6 hour than the total volume of the house.

The main diagram below shows how the three passive elements roof wall and foundation link together. At the same time a 250 m photovoltaic system on the roof produces renewable energy. Passive house has a reputation for requiring ungodly amounts of insulation.