These heavy-duty tornado dampers prevent the collapse of the ductwork during inclement weather. Installed in ductwork or wall mounted near the exterior of a building, the dampers allow for air movement (intake or exhaust) during normal conditions but close when they sense the negative pressure caused by a tornado.
Polyglass U.S.A., Inc. has been manufacturing premium roofing products in North America for 25 years. Learn about our CURE Technology and ADESO Technology, innovations that have transformed the roofing industry.
Utility Vehicle Alert! Don’t Get Framed. Rust can eat right through most UTV frames, destroy your investment and disable your crews. But this simple step stops rust in its tracks.