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CertainTeed's FlintBoard® ISO CV is a high-performance insulation product designed for use in steep-slope, slopes 3:12 or greater, roofing applications where the existing roof does not have sufficient air circulation, as required by most roof shingle and metal roof manufacturers. FlintBoard® ISO CV allows heat to cross vent and dissipate while providing a nailable surface and efficient insulation in a one-step process. Common uses of FlintBoard® CV include cathedral and vaulted ceilings or exposed ceilings. FlintBoard® ISO CV is a venting composite insulation board that consists of a 4′ X 8′ panel of closed cell rigid polyisocyanurate (ISO), a layer of solid wood spacers, creating a standard 1″ cross venting air space and a top layer of APA/TECO rated OSB or plywood. It's rigid insulation board offers the highest R-value (resistance to heat flow) per inch available and long-term thermal resistance values (LTTR*) from 5.7 to 27, LTTR. FlintBoard® CV is made to order in...See More

Features & Benefits

Quick Specs
• Closed-cell polyisocyanurate, solid wood spacers and top layer of OSB or plywood • 4' x 8' panels • Overall thickness 2.5" - 5.0" • Wood spacers can be increased to 1.5" or 2" for increased airflow
• 75% lateral air movement • Optimal cooling and ventilation through 92% open air space • Meets or exceeds ASTM C1289, Type II, Class 1, Grade 2 (20 psi) • Highest R-value per inch available
Why Buy
• On projects with unvented or improperly vented steep-slope roofs, reduce energy costs and improve occupant comfort while optimizing the life of the roof system • Highest R-value per inch available
• Warranty durations between ten and twenty-five years (system specification and product dependent) • Credentialed Contractors can increase warranty durations by 25% with an Integrity Maintenance Agreement • Product and Product/Workmanship Limited Warranties • When used within a CertainTeed roof system, warranty coverage extends to accessories. CertainTeed also warrants the thermal insulation R-value on all FlintBoard® products.

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