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WEATHERMASTER™ POLYSEAL
Glass Reinforced Asphalt Roof Underlayment, 1 or 2 Square Rolls.
Width: 36" Length: 33.3´
Square Per Roll Coverage: 1
Length: 36" Length: 66.6´
Square Per Roll Coverage: 2
Description
WeatherMaster PolySeal is a durable, self-adhering modified composite underlayment, specifically designed to withstand the rigors of commercial roofing applications. The strong, slip resistant, polyethylene surface provides a rugged barrier to physical damage, UV degradation, weather, and moisture. The unique, modified asphalt adhesive layer offers the application benefits of cold temperature adhesion and exceptional thermal stability under high heat. The self-adhesive layer is covered with a high temperature release sheet, which is removed during installation.
WeatherMaster PolySeal is 40 mil (1 mm) thick and is supplied in 200 sq. ft. - (18.58 m) or (3 ft. x 66.6 ft.) (.9 m x 20.3 m) rolls. WeatherMaster PolySeal is self-adhering and cold applied. No special adhesives, heat or equipment are necessary to install PolySeal.
Key Properties
• Superior Slip Resistant Polyethylene Surface
• Thermally Stable up to 260° F
• 45 Day Exposure Time
• Self-Adhering & Cold Applied
• Damage Resistant |
PolySeal is an excellent underlayment for metal roofs. PolySeal prevents moisture entry into structures by sealing uniformly to the substrate and around nail penetrations. PolySeal can serve as a temporary roof to protect the structure until the primary roofing system is installed and Polyseal may be exposed for a maximum of 45 days.
| Polyseal should be installed only when ambient and substrate temperatures are 40°F (4.4°C) or higher. Remove all dirt, dust, loose nails and debris prior to installing Polyseal.
 Complete Instructions
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KEEP ROLLS DRY AND COMPLETELY PROTECTED FROM THE WEATHER. If work is to be done in cold weather, rolls of roofing should be placed in a warm place for 24 hours prior to application.
Pallets of WeatherMaster PolySeal shall not be double stacked on the job site. Provide cover on top and sides, allowing for adequate ventilation.
Consult the Material Safety Data Sheet for best available information on the safe handling, storage, personal protection, health and environmental considerations.
| ASTM D-412
ASTM D-903
ASTM D-1970
ASTM E-96
Spec this Product
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Features & Benefits
Extra roofing protection for vulnerable areas. Use for valleys, eaves, flashings, hips, ridges and rakes, and around dormers and skylights.
Self-adhesive backing seals to the deck.
SBS-modified asphalt coating helps seal around nails for a watertight finish.
Can be used in new construction or in reroofing requiring a complete tear-off.
Helps extend the life of your roof.
Provides extra protection under any type of roofing: tile, wood shake, asphalt, slate or metal.
Fiberglass mat is stronger and provides better tear resistance than saturated felt.
Easy to install - even for do-it-yourselfers.
Skid resistant surface for better traction and safer application.
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