About This Waterproof Seal: Self-adhering design creates a watertight barrier for windows, doors, and seams Versatile Application: Ideal for flashing straight window frames, door frames, and construction seams Cold & Hot Climate Ready: Performs in temperatures from 40° F to 120° F; store in warm space before cold-weather installs Flexible Installation: Conforms to irregular shapes and uneven, porous substrates Nail Sealability: Forms a smooth, sealed surface around nails, staples, and fasteners Tear-Resistant Performance: Resists cracking and tearing from structural movement or extreme weather Verified Quality: AAMA 711 compliant; made in the USA for dependable building performance Rubberized Asphalt Construction: Features a self-adhering rubberized asphalt core with polyethylene backing for superior adhesion and durability Overview Brand : POLYGUARD Color : White Material : Polyethylene Number of Items : 1 Special Feature : Waterproof