This helps support the opening and the unit.
Rtu frame detail on roof frame curb.
Provide 14 gauge minimum steel sheet curb sections.
Do not cut out the entire roof deck within the curb area.
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Free cad detail download of a prefabricated roof curb to be used in your architectural section cad drawings.
Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley.
Roof support the roof must be capable of adequately supporting the weight of the rooftop unit as well as that of the curb.
Roof top unit rtu curbs.
1 500 typ 1 5 0 typ.
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.
Figure 4 dunnage steel details roof curbroof curb 1x4 nailer1x4 nailer 0 438 typ 0 438 typ.
Refer to figure 17 and tables 1 and 2 for specific center of gravity corner weight information and accessory weights.
Never attach roof ashing directly to a york rooftop unit.
Curbs and opening sizes for rtus exceed this cut size and therefore require a roof top unit support frame for each one.
Frame duct openings with 18 gauge curb sections level with perimeter curb sections minimum height 18.
The roof top unit is installed on a mechanical curb that is set onto the roof and flashed in by the roofing contractor.
The rtu is a piece of mechanical equipment that is designed to heat cool ventilate by providing air flow for any combination of the three.
Units may be set either lateral or.
In no case should the curb be less than 14 inches in height.
Sloped to match roof 2.
2 05 optional materials and features 1.
3160 chestnut street proceed to the glass pavilion at end of the parking lot.
The rtu is located on the roof and is therefore a roof top unit.
Figure 3 insulated steel deck frame width of equipment height above roof surfaces up to 24 14 25 to 36 18 37 to 48 24.
Provide curb types as follows.
