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CertainTeed's FlintBoard® ISO NB is a high performance composite insulation board designed for steep-slope, slopes 3:12 or greater, roofing applications, where building's thermal boundary aligns with the roof deck. FlintBoard® ISO NB is composed of a closed cell polyisocyanurate foam core manufactured on-line to a fiber reinforced facer on one side and either OSB or plywood on the other. NB delivers the energy-savings and occupant comfort of highly thermal resistant insulation board with the added benefit of a nailable surface for steep-slope roof system installation such as shingles, standing seam metal, tile or slate. FlintBoard® roof insulation slows the flow of heat into and out of the building through the roof deck, reducing energy costs for building owners as well as thermal strain to the roof system. Composed of a closed-cell polyisocyanurate foam core, FlintBoard® offers the highest R-value (resistance to heat flow) per inch available and long-term thermal resistan...See More

Features & Benefits

Quick Specs
• Closed-cell polyisocyanurate bonded to OSB or plywood • Nominally 4' x 8' panels • Foam thickness 1.5" - 4.0"
• Meets or exceeds ASTM C1289,Type V, Grade 2 (20 psi) • Highest R-value per inch available
Why Buy
• Extend the life of the roof system and improve occupant comfort • Ideal for steep slope projects when the thermal envelope aligns with the roof deck, as opposed to the attic floor
• 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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