Materials:Foamular 400 (Type 4)

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: Owens Corning Canada Accepted for RoofStar Guarantee Program Date TBA Product Summary FOAMULAR® 400/600/1000 insulation is an extruded Type 4 CAN/ULC-S701-CAN/CGSB-51.20-M87 polystyrene rigid board insulation that is specifically designed to provide high quality, economical insulation for conventional roofs, with single-ply, two-ply or four-ply roof membranes. The extruded board has smooth, high-density skins, shiplap or Square edges on four sides and a very dense closed-cell foam sturcture. Board size is 600 mm x 1200 mm (2'x 8'), in thickness ranging from 25 mm to 100 mm (1" to 4"). FOAMULAR® 400/600/1000 has one of the highest thermal resistance values, an aged (RSI value of 0.88 per 25 mm (R5.0 per inch). It has excellent water resistance characteristics (absorption of less than 0.7%) and a high compressive strength of 275 kPa, 415 KPa, 690 KPa (40 psi, 60 psi, and 100 psi). FOAMULAR® 400/600/1000 is ideal for use in both standard and lightweight protected membrane roof systems and can be adhered or loosely applied. It is lightweight, easy to cut and simple to install year round.

Click below for the Technical Data Sheet