Greenheck ATI Brochure & Specs
Text of the manual
Prefabricated roof curbs 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 discharge and can provide an accessible mounting location for da
Model GPI Standard
Construction Features
Insulation - Ridged fiberglass insulation is standard on
all GPI curbs. The insulation is securely attached at both the
top and bottom with an insulation tray so it will not have any
exposed ends. Three pound density insulation is available in
1, 11⁄2, and 2‑inch thicknesses.
Lap Joints - Wood
naile
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 woo
Equipment Supports and
Curb Extensions
Models GESS and GESR
These equipment supports are designed for use on both insulated (GESR)
and non-insulated (GESS) flat roof decks. They are mounted directly
to the deck structure, then roofed and flashed for weather tightness. A
variety of sizes and widths are available. (Refer to CAPS for more details.
