Gibraltar is the largest manufacturer of ventilation products and accessories in North America, offering a comprehensive line of powered and static ventilation products for attics, foundations, and whole-house applications. We make roof, gable, ridge, powered, foundation, and under-eave vents to provide a truly balanced ventilation system that protects equally against summer heat and winter moisture. Three Gibraltar companies are available to serve a wide variety of needs.
Air Vent, Inc.
Construction Metals, Inc.
Jurupa Valley, CA
SEMCO (Southeastern Metals Company)