19
GROWSPAN
™
ROLLING PREMIUM HIGH TUNNELS
Revision date: 01.01.16
5. Position one (1) cross connector (102547) near the top of the interior rafter assembly.
6. With assistance, take one (1) swaged 75" purlin sections (#131S075) and
insert the plain end
through the 102547
cross connector at the top of the interior rafter. Slide the pipe toward the end rafter and insert the plain end into the
102857 end clamp at the peak of the end rafter. Use the top, center mark as a guide.
7. Verify that both rafters are plumb and properly spaced (4' on center). Use the customer-built jig if available. Adjust
purlin as needed to align it with the center mark at the top of each rafter.
8. Tighten the 102547 cross connector on the interior rafter and tighten the end clamp of the end rafter to secure the
first section of purlin pipe.
NOTE:
Do not allow the plain end of any purlin to extend beyond the end of the end rafter.
9. Secure each clamp to the rafter and to the purlin pipe. See the diagrams below.
Purlin
Tek Screw
Tek Screw
Interior Rafter
102547 Cross
Connector
Secure all 102547 and 102857 clamps to the rafter and to
the purlin pipes as shown above.
Do not allow the purlin to extend beyond the end
rafter.
End Rafter
