CLEARSPAN
™
GARAGES & STORAGE SHEDS
10
Revision date: 06.11.08
FRAME ASSEMBLY (CONTINUED)
7. Move to the lower end of the rafters and position the
purlin 4-6" up from the finished grade.
8. Install the remaining purlins. Verify the rafter spacing is
4' on-center and tighten connectors.
9. Slide a band clamp onto each bottom purlin after the
second rafter to prepare for the strut assembly.
10. Continued adding rafters and purlins until the frame
is assembled. Remember to add band clamps to the
lower purlins between the second and third rafter at the
remaining end of the frame for the installation of the
struts.
NOTE:
Each purlin assembly consists of 1.315'' x 75''
(#131S075) swaged pipes (number is determined by
shelter length) and one (1) 1.315'' x XX'' (#131P0XX)
plain pipe.
The XX'' represents the remaining length needed to
reach the end of the frame. Consult the Spec Sheet for
part identification.
4-6"
4'
center-to-center
Inside of
shelter
1/2''
11. Finish each purlin run using the plain, shorter pipe
(#131P0XX), and use the final end rafter to complete
the assembly.
NOTE:
If the last end rafter is plumb and the purlin
run extends beyond 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 finished the purlin run with the correct plain
pipe before you decide to cut any pipe.
CAUTION:
To prevent cover damage, the ends of the
purlins should extend no more than ½'' past the end
clamp. The bolt side of the end clamps must go toward
the “inside'' of the shelter (the same side as the purlin)
as shown.
12. Return to each clamp and install a Tek screw through
the clamp and into the purlin pipe as shown.
13. Secure each clamp to the rafter using a Tek screw.
End Rafter
Tek
Screw
Tek
Screw
Interior
Rafter
Purlin
Purlin