7. Roof
PNEG-1461
12' and 15' Bulk Feed Tank Series and Grain Hopper Tank Series
31
15' Roof Assembly Instructions
After completing first ring assembly, you are ready to begin roof construction. First, build a roof center
support to hold the peak ring in place at the proper height. A simple structure consisting of a sturdy cross
arm attached to a pole and supported by a platform or scaffolding will do. Stand the center support directly
in the center of the tank. The bottom of the peak ring should be 78-15/16" (2005 mm) above the foundation
on the 15' tank. These dimensions are approximate ones used in BFT construction. Adjusting the center
support height will ease roof erection. Refer to the accompanying drawings for details. Install six (6) roof
reinforcement angles spaced equally around the tank. Reinforcement angle edges are parallel with
sidewall sheet and peak ring, see views “A-A” and “D-D”
The reinforcement angles utilize every other hole in the peak ring. At the sidewall, there are ten (10)
spaces between each reinforcement angle on the 15' tank. Next, “skin” the roof by installing the roof
panels on the just completed reinforcement structure. Reinforcement angles will share all roof panels
holes, including hole where panel and peak ring attach. Ensure that all roof seams are caulked and lapped
correctly as shown in the accompanying detail drawings.
Figure 7H
