Grain Systems Bin Accessories PNEG-1863 - Manual (Page 15)

3. 72' High Wind Roof Assembly Instructions
PNEG-1863 Special High Wind 72' Roof Assembly 15
Figure 3E
* NOTE: The upper middle purlin and lower purlin have the top flange coped to allow flush installation with the top
of the beam.
1. At the upper middle purlin location bolt the purlin to the beam utilizing the large purlin clip (CRP-5054) and 1/2" x 1-1/2"
hex bolts with washers under the nuts on both sides.
2. At all other purlin locations utilize 3/8" x 1-1/2" hex flange head bolt with a washer under the nut to bolt the small purlin
clip (CRP-5029) to the purlin. The purlin clip will bolt to the beam with a 1/2" x 1-1/2" hex head bolt.
See detail 7
below
* See note below