Grain Systems Tanks PNEG-4135A - Manual (Page 88)

Chapter 7: Roof Assembly
Figure 7-11 Supplier quick link
A Purlin C Supplier quick link
B Temperature cable bracket (CTR-0317)
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 110 ,
Assembling Purlin Number 2, page 108 , Assembling Purlin Number 3, page 106 , Assembling Purlin
Number 4, page 104 , Assembling Purlin Number 5, page 102 , Assembling Purlin Number 6, page 100 ,
Assembling Purlin Number 7, page 98 , Assembling Purlin Number 8, page 96 , Assembling Purlin Number
9, page 93 , Assembling Purlin Number 10, page 92 , and Assembling Purlin Number 11, page 90 .
88 Pneg-4135A 135 Ft Diameter 40-Series Bin