CLEARSPAN
™
SUNBLOCKER PRO SHADE
10
Revision date: 09.16.09
4'
on-center
rafter
spacing
A & C
B & D
E
Ground Level
NOTE:
The purlin assembly
consists of 1.315'' x 75''
(#131S075) swaged pipes
and one (1) 1.315'' x 73.5''
(#131P0735) plain pipe.
Consult Side Profile diagrams
in the Quick Start section for
pipe identification.
FRAME ASSEMBLY (continued)
4. Position the cross connector at the peak of the inside rafter assembly as
shown in diagram B.
5. Locate one (1) swaged 75" purlin section and insert the swaged end
through the upper clamp on the end rafter and through an upper cross
connector on the interior rafter as shown in diagrams A & B.
6. Verify that both rafters are plumb and properly spaced (4' on center),
and that the purlin does not extend more than ½'' past the end clamp.
7. Repeat steps 4 through 6 for the remaining purlin runs.
8. Tighten the cross connectors on the inside rafter and tighten the end
clamps on the end rafter to secure the first sections of purlin pipe.
9. Continue adding rafters and purlin pipes until the frame is assembled.
Secure all purlin splices using Tek screws (diagram E).
10. Finish the purlins using the plain, shorter pipes (#131P0735). Attach
them to the final end rafter to complete the frame assembly.
NOTE:
If the end rafter is plumb and a purlin extends past the end
of the rafter, cut the last section of purlin pipe to the required length.
Typically purlin pipes
do not
require cutting.
Verify that you have the
correct plain pipe before cutting any pipe to complete the purlin.
11. Once all rafters are set and the purlins are
in place and secured, return to each end
clamp and cross connector and install Tek
screws through each clamp and into the
rafter and purlin to secure the clamps. See
diagrams C & D.
12. Return to each rafter and, using Tek
screws, secure the joint between the lower
rafter pipes and the upper rafter pipes and
continue with the following procedure.
3
CAUTION:
To prevent
damage to the cover, the ends
of the purlins should extend
no more than ½'' past the end
clamps. The bolt side of the
end clamps must go toward
the “inside'' of the shelter.
To the
inside of
the shelter
1/2''
Interior
Rafter
Purlin
B
Purlin
End
Rafter
A
Tek
Screw
Tek
Screw
Interior
Rafter
Purlin
End
Rafter
Purlin
C
D
