ExoAir® TWF (Thru-Wall Flashing) is a 40-mil (1.0 mm) composite sheet designed for use as a thru-wall flashing. It is comprised of 32 mils (.80 mm) of self-adhering SBS rubberized asphalt laminated to an 8 mil (.20 mm) cross-laminated, high density, polyethylene film with a siliconized release liner.
ExoAir TWF is typically installed in cavity wall construction on substrates such as masonry, metal, concrete, gypsum and wood substrates. ExoAir TWF transitions from ExoAir 110 and ExoAir 111 Self-Adhered Air and Vapor Barrier, ExoAir 120 and ExoAir 130 Fluid Applied Air and Vapor Retarder Membranes and ExoAir 220 and ExoAir 230 Fluid Applied Vapor Permeable Membrane to areas that require a masonry flashing material.
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