Insulating Membrane Roof

Without a membrane vapour would rise and penetrate into the roof and insulation.

Insulating membrane roof.

Depending on your needs there are different variations of roofing membrane to choose from ranging from the lightweight to heavy weight. Should i leave out the soffit vent. A vapour membrane is also a likely requirement to stop moisture which is naturally generated in an occupied room. Lightweight insulated concrete also known as lwic is a material intended for use as an insulation and substrate for support and attachment of roofing membranes on slope roofs.

The lwic systems are composed of either aggregate or cellular concrete. Roof edge detail overhang extended to hide the thickness of the over roofing rigid insulation. Also there is a soffit vent but none at roof peak. How to install insulation board over an existing roof membrane.

Roof membrane ybs insulation manufacture specially designed roofing membranes which allow the roof to breath and help protect against the ingress of wind rain and snow. Installed a new fully adhered membrane to the top of the old board sheathing prior to adding all that rigid insulation. Is there any advantage to trying to get any insulation in between the 2 8 rafters. Gable end detail overhang cut and then rebuilt to hide the thickness of the over roofing rigid insulation.