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TW Metal and Tile Underlayment
Brand: Tamko Building Products LLCA fiberglass-reinforced self-adhering rubberized asphalt sheet membrane with a polymer film on the surface.
Features a removable treated release film on the adhesive side for convenient installation and handling.
TW Metal & Tile Underlayment can be left exposed for up to 120 days and is used under metal roofs, mechanically fastened tile, slate, wood shakes, asphalt and composite shingles.
Features- Fiberglass mat construction
- Self-adhering SBS modified asphalt
- Adheres to cast-in-place concrete, pre-cast concrete masonry block, exterior gypsum sheathing, plywood, OSB, DensGlass, felt-faced and foil-faced polyisocyanurate foam insulation or, metal surfaces
- Polymeric surface film
- Split treated release film
- 5-year Limited Warranty and Arbitration Agreement
Specifications
Roll Size
- 200 ft²
Roll Coverage
- 179.82 ft²
Roll Dimensions
- 39 3/8" x 61 ft
Rolls per Pallet
- 25 rolls
Adhesion to Plywood at 75° F
- ASTM D1970
- ≥ 12 lbf/ft. width
Moisture Vapor Permeability
- ASTM E96 (BW)
- ≤ 0.1 perms
Maximum Load
- ASTM D1970
- ≥ 25 lbf/in.
Elongation Modified Bitumen Portion
- ASTM D1970
- ≥ 10 %
Low Temperature Flexibility
- ASTM D1970
- -20° F
Thickness
- ASTM D1970
- ≥ 40 mils