Page 2 - ZSi-Foster Rooftop Support System

Cush-A-Block Rooftop Support System
CUSH-A-BLOCK - CBN SERIES
Foster
ZSi
PLAIN BASE
4-3⁄16"
6.25"
101⁄2"
CBN-Base Series
Part No.
Weight
Uniform Load Capacity (Lbs) *
CBN
3.2 lbs.
2,500 *
* This load is only for the capacity of the components in this assembly. Please consult roofing manufacturer or engineer for roof load capacity.
5"
The CBN-Base Rooftop Support is UV resistant and suitable for installation on most types of roofing material or other flat surfaces. Can be used as a curb (sleeper) replacement. Screw fasteners can be used to attach one or two hole pipe straps or a piece of strut (not included).
CUSH-A-BLOCK - CBN-BR BRIDGE SERIES
SUPPORT WITH CHANNEL
55⁄8"
Strut Length
Total Length
CBN-CB–Bridge Series
Bridge Length Supports with 2 CBN Bases and Strut
Part No.
Strut Length
Total Length
Weight (Lbs)
Uniform Load Capacity (Lbs) *
CBN28BR
28"
29.18"
10.8
1,491*
CBN36BR
36"
37.18"
12.0
1,160*
CBN42BR
42"
43.18"
12.9
994*
CBN50BR
50"
51.18"
14.1
835*
CBN60BR
60"
61.18"
15.6
696*
* This load is only for the capacity of the components in this assembly. Please consult roofing manufacturer or engineer for roof load capacity.
Like all of the Cush-A-Block supports, the CBN-BR Bridge Rooftop Supports are perfect for supporting natural gas and refrigeration piping systems, cable tray, electrical conduit, multiple lines, HVAC equipment and many other applications.
The CBN-BR Series provides a longer mounting surface with strut lengths up to 60". Custom lengths are available upon request.
Standard strut mount pipe clamps are used to secure the pipes.
5"
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