Passivhaus Roof Construction

Structural stability we have used steel structural ridge purlins to carry the main load of building which are inside the thermal envelope so not creating a thermal bridge.

Passivhaus roof construction.

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. This is very close to the passivhaus standard 0 10 0 15 w m2k however it still does satisfy it. There are at least three good reasons for timber construction being popular for passivhaus. Yes timber is a suitable passivhaus construction system.

Excellent levels of thermal comfort. The roof detailing at the golcar passivhaus is in fact similar to that at our stirley farm enerphit project. Passivhaus is an entirely voluntary building performance standard that anyone setting out to build a low energy home might be interested in. Consuming up to 90 less heating and cooling energy than conventional buildings and applicable to almost any building type or design the passive house high performance building standard is the only internationally recognized proven science based energy standard in construction delivering this level of performance.

Click image to expa nd. Timber in all its forms structural framing studwork panels mass timber is suitable. Fink truss attic truss the vaulted roof and the flat roof. All mbc passive roof systems deliver a u value of 0 10w m2k.

It was developed in 1990 over 25 years ago and some estimates suggest there are well over 50 000 passivhaus buildings around the world. Clad in vertical timber panels the exterior façade nods to the traditional agricultural buildings in the area. It s gaining lots of attention in the uk and is based around the principle of reducing heating demand to a very low level rather than relying on renewables. Some of the key characteristics of a passivhaus include.

This passivhaus in berkshire was built by tom gresford of gresford architects using a prefabricated timber frame constructed off site and then erected on site to airtight stage within two weeks. The main diagram below shows how the three passive elements roof wall and foundation link together. The individual roof type diagrams show the detail associated with each roof type.