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Models GPI, GPIP and GPIR
These curbs are designed for roof decks covered with 2 to 6 inches of
insulation. Model GPI is for use on flat roofs, GPIP for pitched roofs and
GPIR is available for ridged (double pitched) roofs. They are mounted
directly to the roof deck before the insulation is applied, then roofed
and flashed to the top of the wood nailer for weather tightness. Models
GPI, GPIP and GPIR are standard with fully welded construction, 1-inch
insulation and 2-inch flashing flange. Models are available in heights of
12 to 24 inches.
Models GPF, GPFP and GPFR
These curbs are designed for non-insulated roof decks. Model GPF for
flat roofs, GPFP for pitched roofs and GPFR is available for ridged (double
pitched) roofs. Models are mounted directly to the roof deck, then roofed
and sealed to the 5-inch flashing flange. Models GPF, GPFP and GPFR are
standard with fully welded construction and 1-inch insulation. Models are
available in heights of 8 to 24 inches.
Model GPS
The GPS curbs are designed for use on flat, non-insulated roof decks.
They are mounted directly to the deck structure with a 1
1
⁄
8
-inch flashing
flange, then roofed and flashed to the top of the wood nailer for weather
tightness. For pitched or ridged applications, use models GPIP, GPIR,
GPFP, or GPFR. Model GPS consists of a fully welded body and 1-inch
insulation. Model GPS is available in heights of 8 to 18 inches.
Model GPR (with raised cant)
This curb is designed for use on flat, insulated roof decks. It is mounted
directly to the deck structure with a 1
1
⁄
8
-inch flashing flange, then roofed and
flashed to the top of the wood nailer for weather tightness. For pitched or
ridged applications, use models GPIP, GPIR, GPFP, and GPFR. Model GPR
has fully welded construction and 1-inch insulation. Available heights for model
GPR are 8 to 18 inches. The raised cant is available up to 6 inches in height.
Model GPFV
The GPFV vented roof curb is typically used for kitchen applications; the
vents allow hot air and gases to escape between the ductwork and roof
curb. This curb is designed for use with Greenheck fan models CUBE, CUE
or USGF to provide the required 40-inch minimum discharge height above
the roof line per NFPA 96. This curb is to be used on non-insulated flat roof
decks. Model GPFV is mounted directly to the roof deck structure, roofed to
the vertical surface and sealed to the 5-inch flashing flange. It is available in
nine different sizes.
Roof Curbs