Grace Ice & Water Shield HT Roofing Underlayment - 36" x 66.6' Roll

Quick ID: Q824


In Stock

Usually Leaves Warehouse in 1-3 Business Days

ShippingAlways Ships Free


  • Excellent protection against wind driven rain and ice dams
  • High quality seal around roofing fasteners
  • Provides watertight installation with NO special treatment of the laps
  • Ripcord and Measurement Markings enable fast and easy installation
  • Ripcord Split Release on Demand makes installation quick and easy
  • High Temperature (HT) resistance up to 260 degrees Fahrenheit
  • Self-adheres


Grace Ice & Water Shield HT is specifically designed to stand up to the high temperatures and other inherent challenges presented by metal roofing. This High Temperature roofing underlayment has a thermal stability up to 260 degrees Fahrenheit. Grace Ice & Water Shield HT has a 120 day exposure time, keeping construction schedules flexible.


Manufacturer Part Number78416
Sub BrandGCP Applied Technologies
Code ApprovalUnderwriters Laboratories Inc. R13399- Class A fire classification under fiber-glass shingles and Class C underorganic felt shingles (per ASTM E108/UL 790) ; Underwriters Laboratories Inc. Classified Sheathing Material Fire Resistance Classification wit
Coverage (Square Feet)200
Installation MethodSelf-Adhering; Side Laps must be a minimum of 3.5 inches and End Laps a minimum of 6 inches
Installation Temperature40 degrees Fahrenheit or higher
Package Quantity1
Ultraviolet Protection120 Days

Weights and Dimensions

Weight (Pounds)51.1
Length (Feet)66.6
Thickness (Inches)40 mil
Width (Inches)36


Reviews & Q&A

Want to learn more? Read product reviews and questions and answers about this product from other customer just like yourself. Have a question? Just click the 'Ask a Question' button and let us know. We'll review your question and post the answer here.