Installing Roof Curb On Metal Roof

Curbs should be a minimum of eight inches above the finished roof and factory insulated to reduce condensation.

Installing roof curb on metal roof.

Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof line. Do not use fasteners that are long enough to fully penetrate the tectum. Showing how an a c curb is vulcanized and installed on an epdm rubber roof. Install any support framing necessary at this time.

Measure mark and cut reliefs in bottom curb flanges at each roof panel rib front and rear. The primary function of the curb is to keep weather out while supporting flashing the equipment on it. Curb installation should be a part of the roof deck not on top of insulation or roofing materials. Set roof curb in position on top of roof panel.

Supplied by others 3. This type of curb has the added benefit of being able to be installed either during the roof installation of after the roof is finished. Be sure the larger edge is laid so that the small edge of the next panel will overlap it. Do not oversize relief cuts 4.

And in this one sentence lie the benefits and the detriments we face in the roof curb business everyday. Placing the curb on and attaching it to the ribs also allows better transitioning from under the roofing on the upslope end to cover the roof on the downslope end. Prefabricated roof curbs have been in use since the roof has been utilized for something other than keeping weather out. Install the roofing screws vertically along each rib in the panel.

Place roof curb back into position and mark the perimeter of the bottom curb flange onto the.