Pitched Roof Curb Detail

Curbs for roof hatches skylights and smoke hatches shall be constant height curbs following pitch of the roof unless specified otherwise.

Pitched roof curb detail.

Minimum curb height is 8 on shortest vertical height standard height is 12 2 x 2 treated wood nailer. All curb flanges shall be pre punched at 3 max centers with 1 4 holes 1 in from outside edge of flanges. Custom sizes with any roof pitch. Pitched to match roof configuration allows equipment to stay level saves installation time and money by eliminating shimming provides uniform loading surface unlike shimmed curbs which rely on point loading.

Top of all curbs for roof top equipment shall be level with pitch built into curbs. The adjustable pitch curb is designed to pitch in any direction and ships knockdown. Mounting curbs for the exhaust fans are made of 18 gauge galvanized steel and can be ordered as wall roof flat or roof pitched. This problem is rarely addressed and roof curbs go uninsulated causing condensation problems.

Pitched curb for roof mounted exhaust fan. Hoodmart pitched curbs for roof mounted exhaust fans. 1 500 typ 1 5 0 typ curb restcu rb est gasket neoprenegasket neoprene 0 25 thk x 1 25 0 25 thk x 1 25 standard standard racewayraceway wall panelwall panel 4 084 typ 4 084 typ. 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.

Figure 4 dunnage steel details roof curbroof curb 1x4 nailer1x4 nailer 0 438 typ 0 438 typ. Roof curb shall be internally reinforced with angles 48 on center and factory installed wood nailer. They can be selected to fit the specific type of roof such as flat pitched or ridged. It is less expensive than a fixed welded pitch curb and offers job site flexibility.

Heights to be 8 above finished roof deck or as detailed. Meaning they will set level on a roof which the roof pitch increases or decreases 1 inch in height for every 12 inches of roof extension or run. Custom hoods can also be made to your specifications with quick delivery. Self flashing features 2 self flashing base for single pitch type fcsp.

Curbs ship in 3 5 business days. Roof curbs are support structures for fans and ventilators. There are many options available to make sure all building requirements are met. The adjustable pitch curb allows an installer to inventory less curbs allows.