FlintBoard ISO DD Composite Polyisocyanurate/DensDeck Roof Insulation is a rigid board insulation for hot asphalt BUR, modified bitumen and single ply roofing systems.Consult membrane manufacturer for suitability and system requirements.
FlintBoard ISO DD is offered in a variety of thicknesses, providing long-term thermal resistance (LTTR) values from 3.5 to 27.1. Available in 4' x 4' (1220mm x 1220mm) and 4' x 8' (1220mm x 2440mm) panels.
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.