High Temperature Underlayment

TRI-BUILT® Self Adhering High Temperature Underlayment is a SBS modified bitumen hightemperature roofing underlayment reinforced with a textured skid-resistant polyethylene film. The membrane is specifically designed to be self-adhered on sloped roof surfaces as secondary seal under metal, shingles, or tile.

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Main Points 1

• Self-Sealing when penetrated by mechanical fasteners or roofing nails

• 40 Mils Thick

• Fully adhered system prevents lateral moisture migration

• Premium skid-resistant textured blue film surface

• Split release backing for fast application

• Can be installed in the Southwest

• No box, which means less jobsite waste

• Meets ASTM D1970 standard

• Can be installed over Plywood, OSB, Wood Plank, Wood Composition, Concrete, Gypsum Board Sheathing, Glass Faced Gypsum Sheathing, Metal, and Masonry