Grain Systems Tanks PNEG-4075A - Manual (Page 80)

Chapter 7: Roof Assembly
Figure 7-10 Supplier quick link on the center collar (view from bottom side of center collar)
C Supplier quick link D Center collar temperature cable hole
Attachment Locations of Purlins to Rafters
Purlins are horizontal members between the rafters that give support to the roof structure. The length of
the purlin determines its location on the A-frame assembly.
The following reference depicts a completely assembled A-frame roof rafter section with X-bracing
installed. For more information, see the following sections:
Assembling Purlin Number 1, page 88 , Assem-
bling Purlin Number 2, page 86 , Assembling Purlin Number 3, page 84 , and Assembling Purlin Number 4,
page 82 .
80 Pneg-4075A 75 Ft Diameter 40-Series Bin