Passive House Roof

The irish standard part l 2011 for a traditional roof structure is 0 16 w m 2 k.

Passive house roof.

Passive house principle sketches special constructions. Justin o keefe 15. Passive house has a reputation for requiring ungodly amounts of insulation. The individual roof type diagrams show the detail associated with each roof type.

Roof build ups for passive houses. Passive house roof build up adhered. 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. Passivhaus is a voluntary standard for energy efficiency in a building which reduces the building s ecological footprint.

The following are six 6 estimates of the passive house premium from five 5 passive house builders. With a heating demand of only 8 kwh m a it is uniquely energy efficient. Fink truss attic truss the vaulted roof and the flat roof. A similar standard minergie p is used in switzerland.

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. This is very close to the passivhaus standard 0 10 0 15 w m 2 k however it still does satisfy it. The roof trusses alone cost 20 000. 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.

Heat recovery ventilation allows for air to remain comfortable and not stuffy which is a common concern amongst passive house builders. This prevents heat loss and shows that air isn t leaking in your home. It grew out of the superinsulation movement after all. It results in ultra low energy buildings that require little energy for space heating or cooling.

Passive house wall capping profiles. 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. To be designated as a passive house a building must embody a set. The main diagram below shows how the three passive elements roof wall and foundation link together.

However the premium for going passive seems limited to the super insulated nature of the building s six sides four walls roof and floor. Attic and roof edge for passive houses. All mbc passive roof systems deliver a u value of 0 10w m2k. At the same time a 250 m photovoltaic system on the roof produces renewable energy.

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. Click image to expa nd. And the construction of the roof sheathing and shingling were all more expensive than that of the stock plan house.