CertainTeed FlintBoard ISO NB Composite Polyisocyanurate/OSB Roof Insulation is a rigid board insulation for use with heavyweight shingles, standing seam metal, tile, slate and single ply roofing systems.
FlintBoard ISO NB is offered in a variety of thicknesses, providing long-term thermal resistance (LTTR) values from 6.6 to 25.6. Available in 4' x 4' (1220mm x 1220mm) panels only.
Before installation begins, the roof deck must be firm, well attached, even, clean and dry. For detailed installation instructions please refer to the CertainTeed FlintBoard product brochure and to the CertainTeed Commercial Roof Systems Manual for installation details regarding FlintBoard Roof Insulation or click on the Installation Instructions link located on the left navigation area. Refer also to Technical Bulletin CT-ISO-08-02.