Roof Curbs, Supports and Extensions
Accurex offers prefabricated roof curbs, which reduce installation time and costs by ensuring compatibility
between the fan, curb and roof opening. A wide variety of roof curbs are available, including: flanged, straight-sided, canted, pitched, ridged, vented, and sound-absorbing. Extensions raise the fan’s discharge and can provide an accessible mounting location for dampers. Insect screen
bases and vented extensions are also available.
Additional Information:
Models GPI, GPIP, GPIR
- These curbs are designed for roof decks that are covered with 2 to 6 inches of insulation
- Fully welded construction
- Wood nailer
- 1-inch insulation
- 2-inch flashing flange. Model
- GPI is for use on flat roofs
- GPIP for pitched roofs
- GPIR is available for ridged (double pitched) roofs
- Models are available in heights of 12 to 24 inches
Models GPF, GPFP, GPFR
- These curbs are designed for non-insulated roof decks
- Fully welded construction
- 1-inch insulation
- Models are available in heights of 8 to 24 inches
Models GPS, GPR
- These curbs are designed for flat, non-insulated roof decks
- Fully welded construction
- 1-inch insulation
- GPR is available with a raised cant
- Models are available in heights of 8 to 18 inches
Model GPFV
- This curb is to be used on flat, non-insulated roof decks
- Typically used for kitchen applications, where the vents allow hot air and gases to escape between the ductwork and roof
- Designed for use with Accurex's model XRUB, XRUBS or XRUD fan to provide the required 40 inch minimum discharge height above the roof line (per NFPA 96)
Models GESS, GESR
- These equipment supports are designed for use on both insulated (GESR) and non-insulated (GESS) flat roof decks
- A variety of sizes and widths are available
- Models GESS and GESR are available in welded aluminum or galvanized steel
- Models are available in heights of 8, 12 and 14 inches and widths of 4, 6 and 8 inches
Models GPE, GPEX
- Both extended base models mount between the fan and roof curb
- Heights range from 12 up to 24 inches
- Models consist of welded aluminum or galvanized steel
- GPE is designed with an access door to provide easy access to the damper and damper actuator as well as fulfilling additional height requirements
- GPEX is also designed to provide additional height requirements without an access door
Model VCE
- 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
- Designed for use with an 8 inch high roof curb and Accurex’s model XRUB, XRUBS or XRUD fan to provide the required 40 inch minimum discharge height above the roof (per NFPA 96)
- VCE is available in galvanized steel or aluminum
Model ISB
- Insect screen bases are available for applications where the building must be free of insects, as in food processing operations
- Insect screen bases mount between the supply fan and the roof curb, and provide an additional 6 inches of height
- Two bolted access doors are provided for removal and cleaning of the screen
- ISB is constructed of galvanized steel or aluminum with a fine mesh screen made of aluminum or stainless steel
Adapters and Reducers
- Used to adapt or reduce the standard fan curb cap dimensions to a nonstandard specified curb size, within 10 inches of standard
- Adapters and reducers are most commonly used to match new fans to existing roof curbs
- Construction consists of welded galvanized steel or aluminum
Model Designation Guide
The Model Designation Guide is designed to completely identify the roof curb. The correct code letters must be specified to designate configurations and size.
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