We are a leading provider of conventional curbs (roof curbs), the solution for mounting roof-top equipment in any application. Customized for each job’s specifications, our tried-and-true curb design and construction methods offer a strong, watertight solution to meet the demands of every project. Our standard curb adapters and curb extensions are factory fabricated from fully welded 18 ga. (.050) galvanized steel. Curb adapters are non-insulated and have a standard height of 6”. Curb extensions are fully insulated with 1-1/2” thick 3 lb. density fiberglass insulation and a standard height of 12”.