Grain Systems Tanks PNEG-2135 - Manual (Page 64)

9. 2.66" Commercial Tank Roof Instructions
64 PNEG-2135 Construction Manual for 2.66" Corrugation 135' Diameter Tank
Lower Roof Panel Attachment (Continued)
(Refer to Figure 9O on Page 63.)
The intermediate roof panel (CRP-6342) and lower roof panel (CRP-6343) will overlap at the G1 purlin
(CRP-6454). Apply two (2) beads of tube caulking at this overlap. The lower roof panel (CRP-6343)
attaches to the eave in four (4) places. Use 5/16" x 1-1/4" bin bolt (S-277) and flange nut (S-3611)
to connect large eave clip (CRP-5325) and intermediate eave clip (CRP-5327) to the sidewall. The
intermediate roof panel (CRP-6342) attaches to the intermediate Z-collar in two (2) places. Use
5/16" x 1-1/4" bolts (S-277), fender washers (S-3671) and flange nuts (S-3611) at this location except
when you must bolt through the roof beam. Use 1/2" x 1-1/2" bolts (S-3728), nuts (S-3729) and washers
(S-2121) at the Z-collar to roof beam attachments. Connect one roof panel rib to the next using
5/16" x 1-1/4" bin bolts (S-277) and flange nuts (S-3611). Flashing (CRP-6380) connects to the top hole
on the intermediate roof panel using the 5/16" x 1-1/4" bin bolt and a #10 self-drilling screw with sealing
washer (S-3929). Each roof panel has to be bolted to the purlins using the 5/16" x 1-1/4" bin bolts
(S-275) and flange nuts (S-3611). The roof panel must be drilled in the flat near the ribs and bolted.
Two (2) bolts are required at each purlin.
NOTE: Install intermediate and lower roof panels at the same time.