Axter Force Line 3VV Roofing Felt Underlay (10m x 1m)

Bundle of 25 rolls 

Force Line 3VV is a glass-fibre reinforced elastomeric modified bituminous membrane. Can be used as a base, intermediate or top layer in a warm roof, multilayer flat roof waterproofing system. It can also be used as an air and vapour control layer (AVCL) to control the movement of air, water vapour and heat leakage from within the building.