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Roofing
Is the material under my roof tiles a breathable or non breathable membrain
Anonymous user 3 March 2024 - 3.41 PM
The material feels plastic, is dull grey on the underside and shinny black of the roof side, there are no manufacturers details on the parts I can see.
I have photos of both sides
Are you a tradesperson and able to answer this question?
its non breathable and prone to condensation it was introduced about 15 -20yrs ago advertised as being super strong before breathable membrane then quickly with draw as it was found to lead to severe condensation in the loft.
good luck Alex