Options and Accessories
Roof Curbs
Prefabricated roof curbs reduce installation time and costs by ensuring compatibility between the fan, the curb and roof opening.. All curbs are insulated with fiberglass. A wide variety of roof curbs are available, including: flanged, pitched and
Hinged Curb Cap with Cables (Field Installed)
Mounted to the curb cap, allows entire fan to tilt away from curb for access to wheel and ductwork. Includes restraint cables..
Hinged Base (Factory Mounted)
Allows for easy maintenance.. Hinge and restraining cables are factory mounted to a subbase attached directly to curb without additional height added..
Curb Seal
Rubber seal between fan and curb to assure proper sealing when attached to a curb.
Curb Extensions
Extensions raise the fan discharge above the roofline and provide an accessible mounting
location for dampers.. Insect screen
bases, constructed with a removable fine mesh, are recommended for applications where insect entry must be prevented..
10
High Wind and Severe Duty Roof Curbs
Provided as an option with models G and GB. The
Model GPF — This roof curb is used on fan models G/GB and specifically designed for high wind applications up to 75 psf.. Curbs are minimum
18 gauge construction in a standard height of
12 inches (305 mm), with
Models SD and SDP — These
flat roofs and model SDP for pitched roofs.. They are attached directly to the building structure with extremely high structural design load requirements.. The severe duty curbs are 12 gauge coated steel with a
Mounting details for the roof curb to the roof substrate and the fan to the curb are included with each model G and GB installation manual..
For additional information refer to the Greenheck High Wind brochure.
Tie-Down Points
Four brackets located on the shroud for securing the fan in high wind applications.. Cables and anchors by others..