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Commercial Roofing

Roofers installing tcpp-free polyiso insulation.
Commercial Roofing

TCPP-Free Insulation Without the Premium Price

Tris (chloropropyl) phosphate, commonly referred to as TCPP, has been used for years as a flame retardant in polyurethane foams, like those found in furniture, mattresses, vehicle seats, and certain building materials, such as polyiso insulation. When exposed to heat or high temperatures, TCPP releases chemicals that slow down the combustion process and reduce flames' ability to spread.

By Karen L Edwards

March 17, 2025