WaterGuard Architectural Metal and Tile Synthetic Underlayment

GAP WaterGuard AMT Architectural Metal & Tile Synthetic Roofing Underlayment is a polypropylene, two-side coated woven fabric containing a patented slip resistant surface.
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    Product Use

    GAP WaterGuard AMT Architectural Metal & Tile Synthetic Roofing Underlayment is a polypropylene, two-side coated woven fabric containing a patented slip resistant surface (U.S. Patent # 7745353) and is used as a secondary roofing protection, mechanically attached to the roof sheathing under the primary roofing material. Its “premium” performance allows for use under all standard types of roofing cladding.

    Material Performance

    Rolls Per Pallet 30

    Mullen Burst (ASTM D3786) 250 psi (1725 kPa)

    Slip Resistance (ASTM 1679) >1 (Tribometer)

    Grab Tensile (ASTM D5034) MD 170 lb. (756 N) / CD 130 lb. (578 N)

    Strip Tensile (ASTM D5035) – N/5cm MD 120 lb. (1052 N) / CD 85 lb. (745 N)

    Tensile Elongation (ASTM D5035) MD 20% / CD 20%

    Tongue Tear (ASTM D2261) MD 55 lb. (244 N) / CD 50 lb. (222 N)

    Trapezoidal Tear (ASTM 4533) MD 55 lb. (244 N) / CD 45 lb. (200 N)

    Moisture Vapor Transmission (ASTM E96) 0.06 perms (0.41 g/day-m2)

    Pliability (ASTM D146) Pass (no cracking)

    Water Ponding (CAN/CSA A220.1) Pass (no dripping)

    Low Temperature Flexibility (ASTM D1970) Pass (no cracking, 5ᴼ F / -15ᴼ C)

    Operating Temperature Rating -40ᴼ F (-40ᴼ C) to 240ᴼ F (115ᴼ C)

    Puncture (T 803) 5.5 joules

    UV Weathering 12 months (UV Stabilized)

    Class A Fire Rating (ASTM E108) Pass

    Florida Building Code Approved FL 6902

    ICC-ES Acceptance for Roof Underlayment (AC 188) ESR-2185

    Hail Resistance Rating (UL 2218)

    Impact Resistance (ASTM D1709) Pass

    Roofing Underlayments (ASTM D226) Pass

    Government Specifications

    Documents

    Download Printable Documents

    Manufacturing Locations

    Pryor, OK | McGregor, TX | Shafter, CA