Rtu Frame Detail On Roof Frame Curb

Figure 4 dunnage steel details roof curbroof curb 1x4 nailer1x4 nailer 0 438 typ 0 438 typ.

Rtu frame detail on roof frame curb.

Facilities real estate services 3101 walnut st philadelphia pa 19104 emergency vehicular address. The rtu is located on the roof and is therefore a roof top unit. Curbs and opening sizes for rtus exceed this cut size and therefore require a roof top unit support frame for each one. In fact a structural frame is required for roof openings in a commercial building of more than 12 inches.

2 05 optional materials and features 1. Do not cut out the entire roof deck within the curb area. Provide curb types as follows. 1 500 typ 1 5 0 typ.

Frame duct openings with 18 gauge curb sections level with perimeter curb sections minimum height 18. Provide 14 gauge minimum steel sheet curb sections. Sloped to match roof 2. Roof support the roof must be capable of adequately supporting the weight of the rooftop unit as well as that of the curb.

This helps support the opening and the unit. 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. Height as required 3. 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.

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. Free cad detail download of a prefabricated roof curb to be used in your architectural section cad drawings. 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. Refer to figure 17 and tables 1 and 2 for specific center of gravity corner weight information and accessory weights.

See figure 6 6. Units may be set either lateral or. In no case should the curb be less than 14 inches in height. Roof top unit rtu curbs.