Roof curb shall be internally reinforced with angles 48 on center and factory installed wood nailer.
Rtu roof curb detail.
Typical roof curbs the curb should be structurally capable of supporting intended loads and designed such that drains power lines etc do not penetrate roof fl ashing.
Pressure treated nailers should be provided by the curb manufacturer to receive roofing felts and eliminate noise transfer.
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.
Curbs should be a minimum of eight inches above the finished roof and factory insulated to reduce condensation.
Curb installation should be a part of the roof deck not on top of insulation or roofing materials.
Internally insulated with 1 1 2 thick 3 lbs.
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Curb installation should be a part of the roof deck not on top of insulation or roofing materials.
Pressure treated nailers should be provided by the curb manufacturer to receive roofing felts and eliminate noise transfer.
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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.
Find out why architects building manufacturers general contractors and erectors prefer rcs for our proven solutions.
Installer s guide roof curb packaged rooftop units.
As a general rule the curb should be placed directly on the roof support members.
See figure 6 6.
Curbs should be a minimum of eight inches above the finished roof and factory insulated to reduce condensation.
The curb should provide a minimum clearance of 10 inches between the top of the finished roof surface and the top of the wood nailer continuous around the curb perimeter.
The roof curb is designed to support the weight of the unit and to offer a means for contractors to connect the supply return air duct work.
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Top of all roof curbs shall be level with pitch built into curb when deck slopes.
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.
In no case should the curb be less than 14 inches in height.
