THERMAX™ White Finish Insulation

THERMAX™ White Finish Insulation has a glass-fiber reinforced polyisocyanurate foam core faced with 1.25 mil embossed white thermoset-coated aluminum on one side and 1 mil smooth aluminum on the other. It can be pressure-washed up to 1,000 psi with a 15-degree or greater spray tip (minimum 3' distance) and can be installed exposed to the interior without a thermal barrier.

THERMAX™ White Finish Insulation is designed as an insulation and interior finish system for interior masonry or concrete walls, plus walls and ceilings in metal, wood post frame, and concrete or masonry buildings.

For best results, seal joints with tapes or joint closures from Dow.

Building Code Compliance

Complies with ASTM C1289 Type I, Class 2. Meets IBC/IRC requirements for foam plastic insulation. See ICC-ES ESR-1659. FM 4880 – see Factory Mutual Approval Guide. UL Classified. Calif. Std. Reg. # CA T383. Florida Building Code FL 3839.

Related Information

THERMAX™ White Finish Insulation Product Information (78KB PDF)
Dow Polyisocyanurate Insulation 15-Year Limited Thermal Warranty (95KB PDF)
Installation Procedures for THERMAX™ White Finish Insulation (Agricultural Applications) (286KB PDF)
Installation Procedures for THERMAX™ or STYROFOAM™ Brand Rigid Insulation – Closed Crawl Space (414KB PDF)

THERMAX™ Insulation Exposed Interior Wall Applications in Metal Buildings with Low Humidity (366KB PDF)

U.S. Residential

U.S. Commercial

U.S. Agricultural