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WR Grace Ice & Water Shield 40 mil x 36" x 75'

Brand: WR Grace Mfg#: 628
Product#: 457IWS36
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Grace Underlayments extend the life of a roof by protecting against leaks caused by ice dams and wind driven rain. For more than 25 years, Grace Ice & Water Shield® has been recognized as the original and leading self-adhered roofing underlayment. Designe


  • Foldless release paper: The foldless release paper provides multiple performance enhancements: fewer edge catches, 180° pull-back, ease of membrane cutting (single cuts) and membrane positioning, quicker “one-man installs” resulting in an easier, more productive release
  • Seals around nails: The rubberized asphalt layer in Grace Ice & Water Shield seals around roofing nails, resisting leakage caused by water back-up behind ice dams, or from wind-driven rain
  • Membrane will not crack, dry out or rot: Grace Ice & Water Shield resists attacks from fungus and bacteria; maintains its integrity for long lasting protection
  • Slip resistant surface: Grace Ice & Water Shield has a slip resistant embossed surface to maximize traction and safety for applicators
  • Protects under all standard sloped roof coverings: Grace Ice & Water Shield protects under slate, tile, cedar shakes or metal, as well as under conventional asphalt shingles
  • Dual barrier protection: Rubberized asphalt and polyethylene are combined to form two waterproofing barriers providing maximum protection
  • Easy to handle and apply: The self-adhesive membrane bonds firmly to the roof deck without heat or special adhesive


  • Brand: WR Grace
  • Product Line: Ice & Water Shield
  • Type: Self-Adhering
  • Color: Gray/Black
  • Temperature Rating: 40 deg F
  • Material: Rubberized Asphalt Adhesive Backed
  • Tensile Strength: 250 psi
  • Thickness: 40 mil
  • Standards: ASTM Specified
  • Length: 75 ft
  • Width: 36 in