GCP Applied Technologies
Grace Ice and Water Shield HT 36 in. x 75 ft. Roll Roofing Underlayment (225 sq. ft.)



Grace Ice and Water Shield HT fully-adhered, smooth surface roofing underlayment is specifically designed for high temperature applications such as metal roof assemblies. It delivers all the advantages of Grace Ice and Water Shield roofing underlayment with thermal stability metal roofs require. Not all high temperature roofing underlayment's are the same. Grace Ice and Water Shield HT is an excellent high temperature ice and water barrier that follows in the footsteps of the original Ice and Water Shield, but is specially formulated to meet the higher service temperatures that are inherent to metal roofing systems. Grace Ice and Water Shield HT is formulated with a proprietary adhesive with temperature resistance of up to 260F. The membrane forms a watertight bond to the roof deck, and seals around fasteners to around the nail of the primary roof covering and thus maintains its waterproof integrity on the roof deck. It also creates a strong bond to the roof deck. Grace Ice and Water Shield HT delivers optimal balance of adhesion and thermal stability for superior performance under the most demanding conditions.

California residents: see   Proposition 65 information

  • Temperature resistance up to 260F provides premium waterproofing for metal roofs
  • 120 day exposure: delivers consistent performance over long, unpredictable construction cycles
  • Strong adhesion to the roof deck: helps ensure a watertight seal, protecting roofs from harsh weather conditions
  • High quality seal around roofing nails: delivers strong roof leak protection; providing peace of mind against costly call backs
  • Forms superior laps: provides watertight installation with no special treatment of the laps
  • Dual barrier protection - rubberized asphalt is combined with polymeric film to form 2 waterproofing barriers providing maximum protection
  • Delivers optimum balance of adhesion and thermal stability for superior performance under the most demanding conditions
  • Protects under all standard sloped roof coverings - grace ice and water shield HT protects under slate, tile, cedar shakes, metal and conventional asphalt shingles
  • Protects roofs from wind driven rain and ice dams
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Coverage Area (sq. ft.)
Product Thickness (in.)
.007 in
Product Width (in.)
Unrolled length (ft.)


Color Family
Product Weight (lb.)
61.4 lb
Roofing Product Type

Warranty / Certifications

Manufacturer Warranty
5 year standard warranty

Guidance, Tips & Roofing Support For Homeowners

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