WeatherMaster® HP-Flex Ice & Water Underlayment

WeatherMaster® HP-Flex Ice & Water Underlayment is a film-faced, high-temperature roof underlayment suitable for use under any type of roofing material.

WeatherMaster® HP-Flex underlayment provides skid resistance, allowing for better traction and safer installation. No special adhesives, heat, or equipment are necessary to install WeatherMaster® HP-Flex underlayment under normal, dry conditions of 45°F or warmer.

WeatherMaster® HP-Flex underlayment provides a secondary layer of waterproofing protection needed to help prevent damage from wind-driven rain. WeatherMaster® HP-Flex helps protect the entire deck of a properly ventilated roof or those problem areas where water collects or drainage is slow. This modified, self-adhering underlayment creates a watertight barrier by sealing to the deck and around nails to provide continuous protection year after year.

WeatherMaster HP-Flex Ice & Water Underlayment Benefits

Modified asphalt coating helps seal around nails for a watertight result
Self-adhesive backing seals directly to the deck
Superior walkability and traction
Strong polyester reinforced top facer
Fiberglass mat is stronger and provides better tear resistance than saturated felt
Signature Select® Eligible
45-mil thickness
Self-adhering selvage edge
High-temperature stability – 240°F
UV-protected surface – 90-day exposure
Excellent underlayment for use under any roofing material
Prevents moisture entry into structures by sealing uniformly to the substrate and around nail penetrations
Serves as a temporary roof to protect the structure until the primary roofing system is installed
Provides secondary water barrier when used as flashing tape on roof deck panel
WeatherMaster® HP-Flex can be installed with full deck coverage

The versatility of WeatherMaster® HP-Flex Ice & Water Underlayment makes it an ideal underlayment for any type of roof.

WeatherMaster® HP-Flex Ice & Water Underlayment