CertainTeed WinterGuard HT Waterproofing Underlayment

Description

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 degrees Farenheit 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.
Features
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 - up to a maximum of 50 years.
Specifications
Roll Length: 65 ft.
Roll Width: 3 ft.
Roll Coverage: 195 sq.ft.
Roll Weight: 53 lb/roll
Roll Thickness: 45 mils. typical
Compliance Codes: Meets ASTM D1970