WinterGuard™HT (high tack, high temperature) advanced waterproofing underlayment withstands high-temperature applications and features excellent flexibility and an aggressive sealant for strong adhesion. Designed for metal, shingle, slate and tile roofs, WinterGuard HT creates a weather-tight barrier. WinterGuard HT has a tough, tear-resistant film on its top surface that will not scratch roofing metal applied over it. The split-release backing sheet makes the product easy to handle and position before deck adhesion occurs. For more information, call 800-233-8990 or visit www.certainteed.com.