Roof Curb Installation Detail

Specify roof curbs in section 07720.

Roof curb installation detail.

A minimum of one cross brace will be provided with each curb. As a point for reference the york solution unit has a front rear left right and top and bottom sides. The primary function of the curb is to keep weather out while supporting flashing the equipment on it. 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.

Pre fabricated fully assembled roof curbs will reduce installation time and costs by ensuring compatibility between the rooftop unit curb and roof openings. 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. 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. Prefabricated roof curbs have been in use since the roof has been utilized for something other than keeping weather out.

Roof curb must be square level prior to setting equipment. Insignia is shown on curb and unit detail drawings. See fi gure 6. The maximum spacing between cross braces is 90.

As a general rule the curb should be placed directly on the roof support members. 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.