Materials:Gafglas Ply IV

Notice to the Reader: The roofing assembly / material information published in the RCABC Roofing Practices Manual and offered below does NOT represent a complete set of the manufacturer’s data or specifications. The preparation of a detailed specification is the responsibility of the design authority.

Manufacturer: gaf.ca Accepted for RoofStar Guarantee Program Date TBA Product Summary GAFGLAS® Ply 4 roofing felt is constructed with a strong glass fiber mat that is coated with the finest quality asphaIt, and is designed with optimum porosity to assure a sound, watertight membrane.

Click below for the Technical Data Sheet.