GROWSPAN
™
GOTHIC PRO GREENHOUSES AND SYSTEMS
12
113836_37_38_39DD Revision date: 06.06.18
FRAME ASSEMBLY (continued)
5. As second rafter is steadied, take one section of purlin
pipe (131S075).
6. Insert purlin pipe through an upper end clamp of the
end rafter and through a cross connector placed in the
same position on
interior rafter.
Consult Quick Start
section (Grid diagram) for purlin location per frame.
7. Align
plain end of purlin
with center of end rafter.
8. Tighten end clamp and secure it to rafter with an
FA4482B Tek screw.
Purlin
End Rafter
10. Move to the interior rafter, verify that rafter spacing is
forty-eight inches (48") on-center (adjust as needed),
and tighten cross connector.
Interior Rafter
Purlin
11. Secure cross connector to rafter and to purlin using
FA4482B Tek screws. See details in Quick Start section
if needed.
12. Repeat Steps 6-12 to install the first section of each
purlin for the first two rafters.
13. Choose another interior rafter assembly and set it in
position.
Do not use the remaining end rafter.
14. Secure rafter legs to ground posts as previously
described and steady the rafter.
15. Add another pipe and clamp to each purlin run. Verify
that the distance between rafters is 48" center-to-
center.
Adjust rafter forward or backward as needed to
maintain dimension.
Interior Rafter
End Rafter
Do not allow the
purlin to extend
beyond the end
rafter
.
End rafter view
Interior rafter view
20' wide
center-to-center
Dashed line
shows finished
grade.
9. Install an FA4482B Tek screw through end clamp and
into purlin pipe.
