Call us at 855.877.3630


Be the first to review this product

Availability: In stock

From: $221.88

* Required Fields

From: $221.88


GCP Applied Technologies (Formerly Grace) Ice & Water Shield® HT high temperature self-adhered roofing underlayment is a premier membrane designed to deliver premium in-place performance for high temperature applications.

It is composed of two waterproofing materials—an innovative and proprietary rubberized asphalt adhesive combined with a high performance polymeric film with UV barrier properties. The rubberized asphalt surface is backed with a foldless release paper that protects its adhesive quality. During application, the release paper is easily removed, allowing the rubberized asphalt to bond tightly to the roof deck. The Ripcord® embedded in the adhesive provides the applicator a “split release on demand” feature, making it easier to apply in detail areas. 

Features & Benefits

Today’s sloped roof designs utilize more insulation and incorporate long-lasting roof coverings that tend to have lengthy construction cycles. The many variables that contribute to roof top temperatures; insulation, facing, pitch, color, etc., make it difficult to predict what kind of heat profile the roof top will experience. Choosing an underlayment that will perform under all of these demanding conditions is essential to a successful roof design.

Grace Ice & Water Shield® HT underlayment was specifically designed to meet the challenge of these high-temperature applications. It is an environmentally conscious solution that provides both confidence and design flexibility.

  • High temperature resistance — Designed to withstand high temperature applications, up to 260°F (127°C).
  • Seals around fasteners — The rubberized asphalt layer in Grace Ice & Water Shield® HT membrane seals around roofing nails and other fasteners, resisting leakage caused by water back-up behind ice dams or wind-driven rain.
  • Superior adhesion — The self-adhered membrane bonds firmly to the roof deck without supplemental heat or special adhesives.
  • Extended exposure — Can be left exposed for up to 120 days before installing final roof covering
  • Watertight laps — Membrane easily forms water-tight overlaps without special treatment.
  • Protects under all standard sloped roof coverings — Grace Ice & Water Shield® HT underlayment protects under standing seam metal, slate, tile, cedar shakes, metal and conventional asphalt shingles.
  • Slip resistant surface — Grace Ice & Water Shield® HT underlayment has a slip resistant embossed surface to maximize traction and improve safety.
  • Ripcord — Split Release on demand feature makes Grace Ice & Water Shield® HT underlayment easier to apply. Faster application of the membrane in the straight-aways, as well as ease of membrane positioning in detail areas (valleys, around dormers, etc.).
  • Membrane will not crack, dry out or rot — Grace Ice & Water Shield® HT membrane resists attacks from fungus and bacteria; maintains its integrity for long lasting protection.
  • Local technical support — Grace Ice & Water Shield® HT roofing underlayment is backed by a team of local technical support personnel that help ensure every application goes smoothly.

Product Tags

Use spaces to separate tags. Use single quotes (') for phrases.

Write Your Own Review


How do you rate this product? *

  1 star 2 stars 3 stars 4 stars 5 stars