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Discussion Starter · #1 ·
I will cut the vent channel with a circular saw and either a plywood blade or a carbide blade. I intend to set the height of cut to the thickness of the plywood. Should I care if it slices the rafters during this process? Is there a safeguard to this?
 

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Framing Contractor
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Set the height on the saw and make the cut. Obviously, you don't want to cut any deeper than necessary. If you leave a small kerf in a rafter, it is no big deal.
 
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