08-14-2014, 09:55 AM
Vapour Retarders for Low Slope Roofs
membrane in a protected membrane roof is also the vapour/air barrier
other types of low slope roofs use two layers of asphalt saturated roofing felt bonded together and to the roof with hot asphalt
polyethylene film not used as it melts
situated on the warm side of the insulation
![[Image: insulation.jpg]](http://www.frontdesk.co.in/big/cm/insulation.jpg)
membrane in a protected membrane roof is also the vapour/air barrier
other types of low slope roofs use two layers of asphalt saturated roofing felt bonded together and to the roof with hot asphalt
polyethylene film not used as it melts
situated on the warm side of the insulation