Intumescent Coating Receives FM 4470 Class 1 Approval
FM Approvals (www.fmapprovals.com) tested and certified Firefree 88 water-based latex intumescent coating as the first and only intumescent coating to pass the FM 4470 (NFPA 276) roof assemblies for use in Class 1 and non-combustible roof deck construction assemblies.
Previously, all FM-approved coatings were limited to steel roof decks. Firefree 88’s first approval was in 2004, when it was tested in accordance to FM 4975 and Part 1 of FM 4880.