nailing cedar sidwall shingles
I am residing the south side of a house here in <!—-><!—-> <!—->Minneapolis<!—-><!—-> with a double course of red cedar siding. I am using 18Ã¢â‚¬ primed shingles with a 11.5Ã¢â‚¬ exposure as that was what I took off the house and must now match up and weave the corners of the adjacent walls. Current practices indicate a nailing pattern of 2-4 nails nailed one inch above the butt line. This leaves the exposure hanging free and covers the nails with the course above. Previous construction (which I removed and which exists of the adjacent walls) has the exposure nailed down with casing nails. Aside from esthetics, and a possibility (remote) of leaks thru those nail penetrations, are there any reasons to not nail down the exposure
If you're hand nailing vs. using a gun, use "ribbed shingle nails". They do have a small head vs. a finish nail. The nailing schedule should be to nail up from the bottom of the shingle about 2" high. And no, they won't leak through the nail holes. BE sure to stager all seams as well as the undercourse.
Also, if the shingles are in question as to the weather you could spring for the additional cost using stainless steel nails.
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