Roof insulation / Discussions

...insulation Under 2" Cement slab Roof for energy efficiency and water leaks? Maybe 2 layers?  The base for the roof will be Metal beams. Thanks, Rafael, Brooklyn  We would propose you use a rigid board insulation for a flat roof, and there are several to choose from. Probably one of the more common types of insulation u...

We have a 20'x30' Aframe cottage that we have started a reno on.  We have removed the panelling inside and the outside boards are visible and in great shape.  Shingles were incorrectly installed though, so need replaced,  and we were planning to put a steel roof on instead.  The boards inside are exactly the look we ar...

...insulation to a home have been very helpful. But in searching I have not found much related to adding exterior insulation to the roof. Our home does not have an attic. So wondering what systems have been successful - SIPs? Thanks. Choosing the best way to insulate a roof depends on how it is currently built. Let us kno...