CertainTeed WinterGuard Pro HT Waterproofing Underlayment

The CertainTeed Winterguard HT Waterproofing Underlayment is an advanced, self-adhering, high tack, high-temperature membrane that is made to withstand high roof temperatures up to 250��F under the metal roofs. It is designed for application underneath low slope shingle, low slope tile, low slope metal, and low slope slate roofs and is composed of a sturdy support that is impregnated and coated with asphalt that is SBS-modified. Winterguard HT has a film on the top that is tear-resistant and will not scratch the metal roofing that it is placed under. The bottom surface of the Winterguard is adhesive and it is covered with a release film that is silicone-coated. This release film is also split down the center horizontally for easier application. Winterguard can not be left uncovered for more than 6 months.Please Note: WinterGuard is a vapor barrier. Therefore, if WinterGuard is applied over a majority of the roof deck, proper deck ventilation must be provided. If WinterGuard must contact sealants or cements, use solvent-based products sparingly, following manufacturer��s instructions carefully. Excessive use of solvent-based adhesives can damage WinterGuard��s polymer modified asphalt coating. Do not use silicone-based sealants, as they do not maintain adequate long-term adhesion to asphalt.

• Do not expose WinterGuard permanently to sunlight. Cover WinterGuard as soon as possible with a permanent roof surface. The maximum exposure time is 6 months.
• Do not apply WinterGuard over shingles or underlayment of any sort.
• WinterGuard may become slippery under certain weather conditions. When this occurs, avoid walking or crawling on the product.
• WinterGuard will not adhere to wet or cold surfaces. For cold weather tack down, use only roofing nails. Under no circumstances should staples be used with WinterGuard products.
• Store WinterGuard rolls in their packaging in a dry, protected area at a temperature not exceeding 110 degrees F.
• Low-slope application: WinterGuard HT can be applied beneath shingles, slate and mechanically fastened tile to acceptable decks with slopes of 2"/12" or greater and beneath metal to acceptable decks with slopes of 0.5"/12" or greater.
• Seals the roof against infiltration of water into the building due to ice dams and wind-driven rain and seals water-tight around nails.
• WinterGuard is warranted against manufacturing defects and to remain watertight for the same period as the warranty duration carried by the roofing product applied above it �C up to a maximum of 50 years.
• Do not expose WinterGuard permanently to sunlight. Cover WinterGuard as soon as possible with a permanent roof surface. The maximum exposure time is 6 months.
• Do not apply WinterGuard over shingles or underlayment of any sort.
• WinterGuard may become slippery under certain weather conditions. When this occurs, avoid walking or crawling on the product.
• Low-slope application: WinterGuard HT can be applied beneath shingles, slate and mechanically fastened tile to acceptable decks with slopes of 2"/12" or greater and beneath metal to acceptable decks with slopes of 0.5"/12" or greater.
• Seals the roof against infiltration of water into the building due to ice dams and wind-driven rain and seals water-tight around nails.
• WinterGuard is warranted against manufacturing defects and to remain watertight for the same period as the warranty duration carried by the roofing product applied above it �C up to a maximum of 50 years.
• Roll Length: 65 feet
• Roll Width: 3 feet
• Roll Coverage: 195 square feet
• Roll Weight: 53 pounds /roll
• Roll Thickness: 45 millimeters typical
• Compliance Codes: Meets ASTM D1970