Grain Systems Tanks PNEG-4072A - Manual (Page 81)

Chapter 7: Roof Assembly
Figure 7-10 Supplier quick link
A Purlin C Supplier quick link
B Temperature cable bracket (CTR-0013)
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 89 , Assem-
bling Purlin Number 2, page 87 , Assembling Purlin Number 3, page 85 , and Assembling Purlin Number 4,
page 83 .
Pneg-4072A 72 Ft Diameter 40-Series Bin 81