Securing Roof Curb Extension To Existing Roof Curb

The vce vented curb extension is typically used in kitchen applications where the vents allow hot air and gases to escape between the ductwork and the roof curb.

Securing roof curb extension to existing roof curb.

A vented curb extension is typically used in kitchen applications where the vents allow hot air and gases to escape between the ductwork and the roof curb. Curbco has a good command of each metal roof manufacturer s style and builds our metal roof hvac curbs to suit. But one incident during hurricane ivan in september 2004 is particularly disturbing. The curb can also be mounted on a roof deck.

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. Designed for use with an 8 inch 203 mm high roof curb and greenheck fan models cube cue or usgf to provide the. In this case additional nailing plates must be provided directly below the flanges of the curb to give further support and to minimize vibration. Gpex special purpose roof curbs equipment supports curb extensions gpe special purpose roof curbs description 1 inch 25 mm insulation flashing flange available heights inches mm.

Specify prefabricated roof curbs and related products by a roof curb manufacturer not with or by the equipment manufacturer. When the installation is on an existing building hoist the shipping container directly. Adapters and reducers are most commonly used to match new fans to existing roof curbs. Curb extensions description vce.

Provides continuous counterflashing over existing roof curb while supporting and retrofitting new equipment with watertight design. Of the curb rest is intended for securing the curb rest to the shipping material used during unit shipment. Specify roof curbs in section 07720. Rps curb adapters extensions are custom fabricated to fit all manufacturers skylights power roof exhausters intake and relief vents smoke hatches flues or job fabricated items.

Once the shipping material is removed and the unit is placed on the curb the holes may be used for securing the curb. Designed for use with an 8 inch high roof curb and greenheck fan models cube cue or usgf to provide the required 40 inch minimum discharge height above the roof line per nfpa 96. Method to secure the roof curb in place. One that has pitch built into it nearly all metal roofs are pitched and is designed to accommodate the various connectors and styles used in metal paneled roofs.

See figures 15 and 16. If there were any doubts about the dangers of poorly anchored rooftop equipment during a hurricane building consultant thomas lee smith can point to case after case of flying mechanical units rolling condensers and whipping lighting protection systems causing extensive damage to buildings. Roof curb unit application new release form. 102 20 ag11 1205 general.