Hydrashell® Max-Grip is a high-performance, self-adhesive roofing underlayment engineered for superior protection against ice and water intrusion. Built with a durable glass mat carrier and coated with a premium blend of SBS polymers, asphalt, and additives, it delivers the perfect balance of flexibility and toughness. Its sanded top surface allows for confident foot traction during installation, while the underside features a highly adhesive asphalt layer protected by a silicon-based release film for a clean, efficient application.
Weather-Tite HT is a premium high-temperature self-adhering solution that provides superior leak protection for standard roofing areas plus valleys, ridges, coping joints, chimneys, vents, formers, skylights, and low-slope sections. Exceptionally durable and pliable, Weather-Tite HT adheres to a wide variety of substrates. The split-back release film peels off easily to simplify installation, while a cool-gray surface to reduce heat build-up and a 12 month UV exposure rating for extended installation periods eases the process as well.
Compound Stability (ASTM D36): >125℃ (257℉)
Maximum Load (ASTM D2523): 4.4 KN / m
Elongation at Break (ASTM D2523): 10%
Adhesion to Plywood at 4℃ (ASTM D903): 0.92 kg/30.5 cm
Adhesion to Plywood at 23℃ (ASTM D903): 5.44 kg/30.5 cm
Thermal Stability (ASTM D1204): 3 mm
Flexibility Temperature (ASTM D1970): -29℃ (20℉)
Tear Resistance (ASTM D4073): 89 N
Waterproof Integrity of Lap Seam (ASTM D1970): Pass
Sealability Around Nail (ASTM D7349): Pass
Moisture Vapour Permeance (ASTM E96): 5.7 ng/Pa.S.M²
Slip Resistance (ASTM D1970): Pass
Weather-Tite HT features a split-back release film that peels off for easy installation. The clean, easy-to-handle, self-adhering application makes installation quick and efficient.
Calculate the exact amount of ventilation needed for a well-balanced system.
