®
Installation, Operation and Maintenance Manual
Please read and save these instructions for future reference. Read carefully before attempting to assemble, install,
operate or maintain the product described. Protect yourself and others by observing all safety information. Failure
to comply with these instructions will result in voiding of the product warranty and may result in personal injury
and/or property damage.
Adjustable Roof Curbs
for use with Roof Ventilators
Galvanized steel adjustable roof curbs are designed
for use in general exhaust applications. Allows quick
ventilator installation while providing consistency
throughout entire job. Each roof curb may adjust up to
8
1
⁄
inch to accept several ventilator sizes. Straight-sided
2
roof curbs accommodate built-up roofing styles and
provide leakproof installation. Allow clearance between
all sides of curb and ventilator base for roofing material.
Curbs are constructed of 18-gauge steel and shipped
unassembled. For use in UL 705 ventilator applications.
Dimensions in Inches
Outside
12 inch High Curb
Sq. Dim.
GPIA- 23.5-32G12-G
23
1
⁄
2
GPIA- 32.5-41G12-G
32
1
⁄
2
GPIA- 41-49.5G12-G
41 – 49
GPIA- 50-58.5G12-G
50 – 58
GPIA- 64-72.5G12-G
64 – 72
®
Inside
Weight
Sq. Dim.
Lbs.
– 32
19
1
⁄
– 28
58
2
– 41
28
1
⁄
– 37
74
2
1
⁄
37 – 45
1
⁄
106
2
2
1
⁄
46 – 54
1
⁄
90
2
2
1
⁄
60 – 68
1
⁄
131
2
2
12 in.
Fits Fan Models
RE-20, RBE-20, RCE3-20, RBCE-20, RBS-20, RCS3-20, RBCS-20,
RBF-20, RBCF-20, RDU-20, RBU-20, RBUMO-20
RE-24, RBE-24, RCE3-24, RBCE-24, RBS-24, RCS3-24, RBCS-24,
RBF-24, RBCF-24, RDU-24, RBU-24, RBUMO-24, RE-30, RBE-30,
RCE3-30, RBCE-30, RBS-30, RCS3-30, RBCS-30, RBF-30, RBCF-30,
RDU-30, RBU-30, RBUMO-30
RE-36, RBE-36, RCE3-36, RBCE-36, RBS-36, RCS3-36, RBCS-36,
RBF-36, RBCF-36, RDU-36, RBU-36, RBUMO-36
RE-42, RBE-42, RCE3-42, RBCE-42, RBS-42, RCS3-42, RBCS-42,
RBF-42, RBCF-42, RDU-42, RBU-42, RBUMO-42, RE-48, RBE-48,
RCE3-48, RBCE-48, RBS-48, RCS3-48, RBCS-48, RBF-48, RBCF-48,
RDU-48, RBU-48, RBUMO-48
RE-54, RBE-54, RCE3-54, RBCE-54, RBS-54, RCS3-54, RBCS-54,
RBF-54, RBCF-54, RDU-54, RBU-54, RBUMO-54, RE-60, RBE-60,
RCE3-60, RBCE-60, RBS-60, RCS3-60, RBCS-60, RBF-60, RBCF-60,
RDU-60, RBU-60, RBUMO-60
Document 483836
Adjustable Roof Curbs
2 in.
4 in.
Adjustable Roof Curbs
1