Rigid board insulation for hot asphalt BUR, modified bitumen and single ply roofing systems.

FlintBoard® ISO WF Composite Polyisocyanurate/Wood Fiberboard Roof Insulation features a closed-cell polyiso core bonded to 1/2" high-density wood fiberboard with a fiber-reinforced felt facer on the bottom side. The wood fiberboard top eliminates the need for coverboards or vented base sheets normally recommended over foam insulation. FlintBoard ISO WF may be used with BUR, modified bitumen, and single-ply systems.

FlintBoard ISO WF is a recommended roof insulation in conjunction with CertainTeed Commercial Roofing Systems including Flintlastic® Roof Systems.