Skip to main content
Back to All Ice & Water Shield Products
Grace Ice & Water Shield HT - GCP Applied Technologies (Grace) Ice & Water Shield

Grace Ice & Water Shield HT

High TemperatureUp to 260°F9.2/10 Rating

Grace Ice & Water Shield HT is a high-temperature self-adhered roofing underlayment designed specifically for metal roof assemblies. It withstands temperatures up to 260°F (127°C), making it ideal for standing seam metal and other high-heat applications.

Key Features of Grace Ice & Water Shield HT

  • High temperature resistance up to 260°F
  • Designed for metal roof assemblies
  • Rubberized asphalt adhesive
  • UV barrier polymeric film
  • Self-sealing around fasteners
  • Slip-resistant embossed surface

Technical Specifications

25°F - 260°F

Temperature Range

30 days

UV Exposure Limit

Excellent

Split Resistance

Yes

Self-Sealing

225 sq ft

Coverage Per Roll

$100-$140

Per Square (100 sq ft)

Compatible Roofing Types

Standing seam metalMetal roofingCopper roofingZinc roofing

Advantages

  • Highest temperature rating in category
  • Specifically designed for metal roofs
  • Superior self-sealing
  • Grace quality and reliability

Disadvantages

  • Premium pricing
  • Overkill for asphalt shingle roofs
  • Limited retail availability

Grace Ice & Water Shield HT Regional Performance Ratings

See how Grace Ice & Water Shield HT performs in different climate zones across the United States.

Northeast
9/10excellent

Great for metal roofs in snow

Southeast
9/10excellent

Handles heat well

Midwest
9/10excellent

Excellent for metal installations

Southwest
10/10excellent

Ideal for extreme heat

Pacific Northwest
9/10excellent

Metal roof specialist

Mountain West
9/10excellent

Great temp range

Frequently Asked Questions

What is Grace Ice & Water Shield HT?

Grace Ice & Water Shield HT is a high-temperature self-adhered roofing underlayment designed specifically for metal roof assemblies. It withstands temperatures up to 260°F (127°C), making it ideal for standing seam metal and other high-heat applications.

How much does Grace Ice & Water Shield HT cost?

Grace Ice & Water Shield HT costs between $100 and $140 per square (100 sq ft). Each roll covers approximately 225 square feet.

What temperature range can Grace Ice & Water Shield HT withstand?

Grace Ice & Water Shield HT is rated for temperatures from 25°F to 260°F, making it ideal for high-temperature applications like metal roofing.

Where should Grace Ice & Water Shield HT be installed?

Grace Ice & Water Shield HT should be installed at critical areas prone to ice dams and water infiltration, including eaves (minimum 3 feet from edge, 6 feet in snow country), valleys, around chimneys and skylights, and at roof-to-wall intersections.