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Page 18
Install Roof Stiffeners:
From inside the greenhouse, you'll be installing 9 roof stiffeners onto the underside of the roof frame in the
positions as indicated in FIG 11B.
11.1
Starting off at the left end, place the stiffener along the indicated longitudinal frame member (beveled ends facing down) where
the middle of the stiffener is approximately along the middle of the hinge line (see FIG 11A)
11.2
While pushing up on the stiffener to make it flat against the roof frame, drive T25 screws through the stiffener into the roof frame
starting from the middle of the stiffener and working your way out. See FIG 11A for pattern. Repeat this until all screws for the
stiffener are tightly screwed in. The stiffener should be flush against roof line.
11.3
Now go to the right end of the greenhouse and repeat the process for the stiffener in that position. Now start switching back and
forth from end to end until you get all 9 installed. Roof will remain flexible to be able to absorb load of snow or wind pressure, but
stiffeners will keep it flat.
9 M4 Roof Stiffeners 6 T25 Screws In Each
1
1
2
3
2
3
Hinge
Line
Fig 11A
Fig 11B
M4 Stiffener
1
2
3
4
5
6
7
8
9
While it's not super critical that you follow the exact pattern, it will in fact yield the best result. If you get off, it will not affect
the structural integrity.
Flatten out the roof...
