In 1945 a builder shared a common problem with Clark Belden of installing fixed pitched louvers in homes. It was difficult to cut the right size opening to fit these fixed louvers. Clark solved the problem and Lomanco was officially born on May 4th, 1946, the date the patent for an adjustable louver was filed.
THE AIR FLOW ACCELERATION DESIGN · Maximizes Ventilation Capacity.
GAF-Elk's quality roofing products have been designed to work together for superior, long-term protection, and have been proven on literally millions of homes nationwide.