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Grace Ice & Water Shield HT Self-Adhered Roofing Underlayment 3 ft. x 75 ft., Black
Regular price $271.00Orders start at $399 — combine any items to reach the minimum. Learn more
Grace Ice & Water Shield HT Self-Adhered Roofing Underlayment 3 ft. x 75 ft., Black
Grace Ice & Water Shield HT is a high-temperature, self-adhered roofing underlayment supplied as one 3 ft. x 75 ft. black roll. Its rubberized asphalt adhesive combined with a polymeric film seals around nails and fasteners to resist leaks from ice dams and wind-driven rain. It bonds to the deck without heat or special adhesives.
Key Features:
- High temperature rated: Designed to withstand high-temperature applications up to 260 degrees F.
- Fastener sealing: The rubberized asphalt layer seals around roofing nails and other fasteners.
- Ice dam resistance: Resists leakage caused by water backing up behind ice dams or wind-driven rain.
- Self-adhered installation: Bonds firmly to the roof deck without supplemental heat or special adhesives.
- UV barrier film: The polymeric top film includes UV barrier properties and allows up to 120 days exposure.
- Premium membrane: A premier two-material membrane built for premium in-place performance.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Grace |
| Sell unit | 1 roll, 3 ft. x 75 ft. |
| Product line | Grace Ice & Water Shield HT |
| Material | Rubberized asphalt adhesive with high-performance polymeric film |
| Color / finish | Black |
| Dimensions | 3 ft. x 75 ft. roll |
| Length | 75 ft. |
| Width | 3 ft. |
| Coverage per unit | 225 sq. ft. per roll (3 ft. x 75 ft.) |
| Temperature rating | Withstands high-temperature applications up to 260 deg F |
| Exposure | Can be left exposed up to 120 days before installing final roof covering |
| Type | Self-adhered underlayment membrane |
| Intended use | Ice and water protection under high-temperature roof coverings |
Coverage & How Much You Need:
One roll measures 3 ft. x 75 ft., covering approximately 225 sq. ft. of roof deck before laps. Deduct lap and edge overlaps when calculating rolls needed for eaves, valleys, and other vulnerable areas.
Fit and Compatibility:
Use as a base membrane under high-temperature roof coverings such as metal, tile, or other systems where deck temperatures rise. Install over a clean, sound roof deck; priming may be needed on some porous substrates per manufacturer guidance.
Frequently Asked Questions (FAQ):
Q: What is included in one order?
A: One roll of Ice & Water Shield HT measuring 3 ft. x 75 ft., 225 sq. ft. nominal.
Q: How much area does a roll cover?
A: A full roll covers about 225 sq. ft. before deducting laps and overlaps.
Q: How long can it stay exposed?
A: It can be left exposed for up to 120 days before the final roof covering is installed.
Q: Does it need heat or adhesive to install?
A: No, the self-adhered membrane bonds firmly to the deck without supplemental heat or special adhesives.
Q: Why choose the HT version?
A: The HT formulation is designed for high-temperature applications up to 260 degrees F, such as under metal or dark roof surfaces.
Q: Does it seal around fasteners?
A: Yes, the rubberized asphalt layer seals around roofing nails and other fasteners to resist leaks.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Choose the HT version when the roof covering runs hot, such as standing seam metal or dark tile, where standard ice and water membranes can soften. Roll it onto a clean, dry deck and press firmly or use a roller to work out wrinkles and ensure full bond. Lap end and side joints per the printed lines, and plan rolls so laps fall in valleys rather than on ridges.
Work on roofs carries fall hazards; use proper roof anchors and fall protection, and keep the release-film surface clean and dry to prevent slips during installation.
Get Grace Ice & Water Shield HT underlayment for premium high-temperature roof protection.
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