Section C - Rafter Setup
Step 1:
Stand up one of your end rafters (one of those with the brace bands attached). Secure it to
an existing structure if possible so that it is plumb. If you don
ʼ
t have an existing structure, you
can use some 2x4s as shown tied with rope:
Step 2:
Insert purlins into the clamps at the bottoms of the end rafter and tighten the clamps.
The ends of the purlins should extend a half inch or less past the clamp, or the rough end of
the purlin could damage the cover when it is installed later. Note that the bolt side of the end
clamps must go toward the “inside” of the shelter” (the same side as the purlin) as shown.
Step 3:
Slide an inside rafter (without brace bands) onto the two purlins. Position this 2nd rafter from
the end rafter using a rafter-to-rafter distance of 48". Have your partner hold the rafter in
position while you tighten the purlin clamps at the ends of this rafter.
Step 4:
Slide a purlin through a clamp near the top of this rafter and also the clamp near the top of
the end rafter. Tighten the bolts with the end of the purlin a half inch past the clamp.
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