Materials:MF (Protect Board Composite)

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: Posi-Slope Western Accepted for RoofStar Guarantee Program January 2008 Product Summary "A rigid mineral fibre board manufactured from basalt rock and steel slag with a melting point of 2180 F (1195 C), laminated to a 3 mm (1/8") asphaltic board facer with square edges." The product can be produced in tapered panels with a uniform slope, in two sizes (2'x4', and 3'x4'). (adapted from the Technical Data Sheet)

Click below for the Technical Data Sheet.