Roof Curb Installation Instructions

Using the included self tapping screws securely fasten the roof curb in place to the framing members decking or metal roof sheeting by applying two screws to each side of the roof curb s flashing.

Roof curb installation instructions.

The duct support flange goes in the slot on the pan. See diagram 1 flash around the entire outside of the curb as tightly as possible. Place assembled curb in proper position over roof opening. Curbs should be sloped to avert water ponding.

Screw the duct support to the curb. The duct support flange goes in the slot on the curb. Use tack welding or other suitable fastening method to secure the roof curb in place. To calculate the total curb weight find the unit length multiply by the factor supplied in table 1 for the applicable roof curb height and add the curb end weight for the applicable roof curb height.

Duct support inter locks with pan or other duct support. Insert top edge of roofing material between nail strip at top curb flange and nail roofing material to nail strip with 3 4 inch roofing nails. For roof curbs supplied by trane approximate roof curb weights are in table 1. 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.

Seal edges of roofing material with roofing cement or other suitable mastic until watertight. The rxsg can now have the duct support. Read the entire manual carefully to become familia r with the roof curb installation procedures. Roof curb installation checklist.

One bolt should be used at the center of each of the curb s four 2 x 8 cleats that rest flat against the pitch of the roof. Install insulation cant strip roo fi ng materials fl ash ing and counterfl ashing in accordance with the es. Attach curb to roof surface following industry ac cepted practices. Roof curb and duct adaptor assembly 1 document 472119 roof curb and duct adapter assembly model erve assembly and installation instructions please read and save these instructions for future reference.

Position the roof curb over the vent hole squaring the curb with your roof tiles or standing seams. Screw the duct support and pan the together. Roofing material must extend beyond perimeter of curb base. As a genera l rule the curb should be placed directly on the roof support members.

Duct support inter locks with curb. The curb should be furnished with a wood nailer which provides a minimum of 3 5 of nailer surface mounted at the top of the curb to permit mechanical attachment of. Roof curbs e 2. Roof curb pipe ca binet curb if pipe cabinet is ordered and roof openings.

For tile roof installations apply sealant to mounting screws and around the roof curb base. Set the curb back in place over the hole and bolt it to the roof sheathing using the four 4 bolts provided. Verify curb is square and level per instruc tions above.