Roof Curb Installation Detail

Insignia is shown on curb and unit detail drawings.

Roof curb installation detail.

A minimum of one cross brace will be provided with each curb. Through a comprehensive approach combining attention to detail with a constant flow of information rcs provides the most innovative and complete roof curb systems in the industry. Specifications 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. Roof curb must be square level prior to setting equipment.

Include a footnote in the mechanical and skylight sections that reads all roof curbs are specified in 07720 curb installation should be a part of the roof deck not on top of insulation or roofing materials. The primary function of the curb is to keep weather out while supporting flashing the equipment on it. Pre fabricated fully assembled roof curbs will reduce installation time and costs by ensuring compatibility between the rooftop unit curb and roof openings. 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.

As a general rule the curb should be placed directly on the roof support members. Use tack welding or other suitable fastening method to secure the roof curb. The maximum spacing between cross braces is 90. See fi gure 6.

As a point for reference the york solution unit has a front rear left right and top and bottom sides. And in this one sentence lie the benefits and the detriments we face in the roof curb business everyday.