List of featured suppliers of UNDERLININGS For Built-Up Roofing GRP on Building Products Index
Underlinings are layers of material that are placed beneath the surface in order to provide additional structural support and protect against moisture infiltration. These can be made from a variety of materials, including asphalt, felt, or synthetic fabrics, and are typically applied during the installation of an existing roofing system. Underlinings are an essential component of built-up roofing, helping to ensure the longevity and durability of the overall structure.
