How To Set A Roof Curb

Roof curbs allow the installation of the primary roof and the flashings around this roof curb prior to the delivery of the actual roof equipment and the setting of this equipment.

How to set a roof curb.

Pressure treated nailers should be provided by the curb manufacturer to receive roofing felts and eliminate noise transfer. After the opening was made for the duct work we then placed the curb in position. Specify prefabricated roof curbs and related products by a roof curb manufacturer not with or by the equipment manufacturer. Curb installation should be a part of the roof deck not on top of insulation or roofing materials.

Prefabricated roof curbs have been in use since the roof has been utilized for something other than keeping weather out. The opening through the metal roof was for the intake duct to the a c unit. Roofi ng may be completed after setting the unit. Roof curbs are in many cases installed on the roof and temporarily covered over for waterproofing purposes much earlier than the construction schedule requires.

After leveling the curb we anchored the curb down with 4 screws to the metal sub roof. And in this one sentence lie the benefits and the detriments we face in the roof curb business everyday. The rooftop unit may be mounted immediately after the curb is installed. Because the roof is slightly slanted one side of the curb had to leveled with boards.

Specify prefab roof curbs for use with all roof penetrations and roof mounted equipment including and not limited to hvac units duct openings pipe penetrations power roof exhauster intake and relief vents flues or job fabricated items.