CertainTeed Flintlastic Base 20 is a base sheet utilized in two-ply or multi-layer modified bitumen fire rated roofing systems. It is suitable for use in the construction of various types of roof membrane assemblies for both new construction and recover, over a variety of substrates. Flintlastic Base 20 is reinforced with a tough fibrous glass fabric.
CertainTeed's Flintlastic Base 20 Sheet is manufactured on a durable, high quality fiber glass mat which receives a heavy coating of weathering grade, rubberized asphalt.
CertainTeed Flintlastic Base 20 Sheet is intended for hot asphalt application or approved cold adhesive such as CertainTeed's FlintBond. Rolls should be stored upright, off ground, completely protected from the weather. Roof decks shall be structurally sound, dry, smooth and meet or exceed minimum requirements of the deck manufacturer, local code and CertainTeed.