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CLEARSPAN
™
SUNBURST POLY BUILDINGS
11
FRAME ASSEMBLY (CONTINUED)
As the second rafter is steadied, remove one section of
pipe from one assembled purlin.
NOTE:
Work from the end of the purlin where the
first measurement was taken during the pre-marking
procedure.
Insert the purlin pipe through an upper end clamp of
the end rafter and through a cross connector placed in
the same position on the
interior rafter.
Consult Quick
Start section for purlin location per frame.
6.
7.
Align the plain end of the purlin with the center of the
end rafter and rotate the purlin pipe so that the first
mark is visible (near the clamp of the interior rafter).
8.
Tighten the end clamp and secure it to the rafter with a
Tek screw.
Install a Tek screw through the end clamp and into the
purlin pipe to secure clamp to the purlin pipe.
9.
10.
Purlin
End Rafter
Move to the interior rafter and align the mark on the
purlin with the center of the rafter to maintain the proper
spacing.
11.
Interior Rafter
Align mark with
center of rafter.
Purlin
Verify that the rafter spacing is forty-eight inches (48")
on-center (adjust as needed) and tighten the cross
connector.
Secure the cross connector to the rafter using a Tek
screw. See Quick Start section if needed.
Repeat Steps 6-12 to install the first section of each
purlin assembly for the first two rafters.
12.
13.
14.
ATTENTION:
Slide a band clamp (QH1400) onto the
bottom purlins before connecting the purlin to the first
interior rafter.
This band clamp is used for installation of
struts later in these instructions.
Choose another interior rafter assembly and set it in
position.
DO NOT USE THE REMAINING END RAFTER.
15.
Interior Rafter
End Rafter
Do not allow the
purlin to extend
beyond the end
rafter
.
End rafter view
Interior rafter view
16' wide
center-to-center
Dashed line
shows ground
level.
QH1400
