Passive House Flat Roof Details

They offer energy efficiency ratings in band a.

Passive house flat roof details.

Fink truss attic truss the vaulted roof and the flat roof. See how the dryseal system fits into a range of installations. Alwitra flat roof details. The roof maker passive house flat rooflight passive house drives both innovation and design with a focus on energy efficiency and a carbon neutral offering.

For a start there are no tricky gable end spaces to try and navigate when opening up the upper levels in flat roof houses plus you can use the roof itself as an outdoor terrace which will be a huge benefit for anyone with restrictive garden. Don t go thinking that modern houses with flat roofs only look good though as these innovative designs actually have practical properties as well. Intelligent design of the twin wall and foundation junction provides a break free continuous barrier that essentially envelops the structure in a thick layer of insulation. To gain a deeper understanding of the passivhaus standard it is crucial to examine the difference between traditional irish roof systems and passive roofs.

Again like before i have taken the two most common. This is very close to the passivhaus standard 0 10 0 15 w m 2 k however it still does satisfy it. Passive wall mbc timber frame. The main diagram below shows how the three passive elements roof wall and foundation link together.

The new york architect chris benedict leads in the right direction by going further using 1 2 12 flat roofs. All mbc passive roof systems deliver a u value of 0 10w m2k. The individual roof type diagrams show the detail associated with each roof type. The irish standard part l 2011 for a traditional roof structure is 0 16 w m 2 k.

Speaking to passive house plus the company s hugh whiriskey emphasised that with more and more designers now specifying vapour control membranes in flat roof constructions it is crucial each roof structure is correctly designed to prevent any moisture issues from arising. Principle sketches of flat roofs for passive houses available as downloads in dwg dxf and pdf formats free of charge. Minimum flat roof pitch 2 1 4 12 and 3 3 8 12 when considering potential deflection. Passive houses aren t just residential either with large scale commercial buildings like offices hospitals and schools conforming to the standard and leading the way for a.

Passive houses when sold can command a premium on the open market due to their low running costs with some house builders boasting annual heating bills as low as 60. Shedding water is always the essential first step in preventing leaks and keeping your roof safe.