Hvac Roof Curb Detail

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.

Hvac roof curb detail.

We ve built more curbs than anybody relying on years of experience and libraries filled with hvac equipment data. When a building is constructed prior to the installation of the hvac rooftop unit rtu the roof is cut and a metal structure called a roof curb is installed. Heights to be 8 above finished roof deck or as detailed. A galvalume coated roof doesn t mean that a galvanized steel roof curb is the best thing to use in fact galvanized roof curbs are known to rust corrode and leak particularly along weld joints as soon as a year after installation.

For anyone new to the hvac industry this is a valid question. Top of all roof curbs shall be level with pitch built into curb when deck slopes. Roof curb and curb adapter specialists serving north america. 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.

Units may be set either lateral or. Roof curbs should be supplied by the hvac manufac turer to the general contractor or building manufacturer and installed by an experienced erector. Internally insulated with 1 1 2 thick 3 lbs. Commercial ac manufacturers all have proprietary specs for their curbs.

Mechanical contractors should not be asked to supply or install roof curbs for roo fi ng systems. Specify roof curbs in section 07720. What is a curb adapter. Founded in 1959 and with 5 factories across the country thybar is the oldest and largest roof curb manufacturer in the world.

The slightest inefficiency or mismatch in design or engineering can create blow back. Roof support the roof must be capable of adequately supporting the weight of the rooftop unit as well as that of the curb. The roof curb is designed to support the weight of the unit and to offer a means for contractors to. They also serve as a location for roof penetration to allow cooled air to flow into the building and return air to flow out.

This guide does not address roof penetrations. Roof curbs for standing seam metal roofs pick the proper material. Find out why architects building manufacturers general contractors and erectors prefer rcs for our proven solutions. Instructions supplied with the unit curb.

Let s start with a new installation. Hvac curbs provide structural support for rooftop ac units and other roof mounted equipment. Do not cut out the entire roof deck within the curb area.