Deck Defense

Deck Defense is a mechanically attached polymeric roof underlayment used in steep slope roofing. Underlayment is manufactured as a woven sheet coated on both sides. Underlayment rolls have approximate dimensions of 286ft x 42in. Underlayment is mechanically attached.

Ratings

ASTM D8257
Product has met specification requirements of ASTM D8257.

ASTM E108 (Fire)
Product has met Class A requirements of ASTM E108 when installed over minimum 3/8in thick APA-rated plywood decks with allowable roof covers of asphalt shingles (ASTM D3462). Slope is unlimited.

CSA A220 Series-06
Product has met requirements for Roll Underlayment Over Solid Sheathing as specified in CSA A220 Series-06: Concrete Roof Tiles; CSA A220.1-06: Installation of Concrete Roof Tiles; Section 4.4: Underlayment Materials.

Legacy Ratings with Historical Precedence

ASTM D226
Product has met Type II requirements of ASTM D226 - Table 1 Physical Requirements (Breaking Strength, Pliability, and Loss on Heating). Note: Product is not an asphalt-saturated organic felt; product is a polymeric underlayment.

ASTM D4869
Product has met Type IV requirements of ASTM D4869 - Table 1 Physical Requirements (Tear Strength, Pliability, Loss on Heating, Liquid Water Transmission, Breaking Strength, and Dimensional Stability). Note: Product is not an asphalt-saturated organic felt; product is a polymeric underlayment.

CSA A123.3
Product has met selected Type 3 requirements of CSA A123.3 - Table 1 Physical Requirements (Loss on Heating, Pliability, Breaking Strength, and Water Shower Exposure Test). Note: Product is not an asphalt-saturated organic felt; product is a polymeric underlayment.