Recent content by Trigger55

Thanks - I'm not sure! It's 3 layer felt system - 2mm membrane, 4mm torch on second layer and a 4mm mineral cap.

Hi - my first post so please go easy... I'm in the process of getting a new shared valley installation on a 30's semi. The contractor has provided a quote for Polyglass to replace the existing lead valley. My understanding is both will last a long time if fitted correctly - lead will last...