Roof Curb Submittal

Galvanized steel with continuous welded seams and integral base plate.

Roof curb submittal. All curbs to be provided by one roof curb manufacturer. Prefabricated roof curb to be manufactured of prime galvanized steel construction 20 18 16 or 14 gauge as required meeting astm a653 653m with welded corners and with seams joined by continuous water and air tight welds. As a general rule the curb should be placed directly on the roof support members. When using a motor operated damper in the curb a 12 high minimum curb is required.

Wood nailer typical with flat curb gasket on pitched curb. Dm 078 150 bp 078 150 df 078 120 dj 150 dh 078 150 job name. Inside of curb is 3 less than dimension a. If the roof curb will be mounted on a new building it can be assembled at any convenient location and installed as soon as the roof support members are in place.

Use tack welding or other suitable fastening method to secure the roof curb in place. Dimensions are not to be used for construction. Curbs are sized 1 2 less than fan base to allow 1 4 each side for clearance. Above finished roof curb frame insulation unit base rails counterflashing can t strip insulation and roofing material roof deck and support structure 14 3 56 3 75.

Flanged straight sided canted pitched ridged vented and sound absorbing. A wide variety of roof curbs are available including. Lined with 1 fiberglass insulation. Damper tray and other options available.

Ca 1 adapters extensions for equipment and skylights larger than existing curb. All roof curbs equipment rails pipe and duct mounting pedestals and pipe penetration systems to be specified together bought by one contractor and installed by one contractor. Roof curb shall be internally reinforced with angles 48 on center and factory installed wood nailer. Submittal data sheet roof curb model.

For aluminum curb substitute rcsfai in place of rcsfgi. Constructed of 18 ga. Roof curb cutaway 3 4 x 1 1 4 wide gasketing for curb frame and all duct support surfaces 2 unit base wood nailer 8 min. Ca 2 adapters extensions for equipment and skylights smaller than existing curb.

Roof curbs extensionspage header and equipment supports prefabricated roof curbs reduce installation time and costs by ensuring compatibility between the fan curb and roof opening. Pate offers roof products custom curbs metal building roof curbs equipment support rails pipe supports skylights smoke vents and isolation bases. Ce 1 adapters extensions for equipment and skylights of the same size as existing curb.