Recent content by gavin9537

Thanks Alastair Any recommendations for breather membrane? Would Tyvek be suitable?

I have a 1930s semi with an unconverted loft that I use for storage. The floor is insulated and boarded and the inside of the roof is covered with some sort of heavy duty, black fabric material - is this underfelt? (see pics). The fabric is held in place with felt nails into the rafters. In...