We used zipwall exterior sheathing recently. The walls are 2×6 framed 24″ o.c. When we started putting up the sidewall (white cedar shingles) we noticed that the sheathing had bowed in b/w studs in several locations. This creates a wave effect on the shingles and is quite noticeable.
Huber seems to think that a few of the panels expanded slightly in the width direction causing them to flex in or out.
Has anyone else seen this problem? It was completely undetectable until the shingles were installed. We are going to block the bays with 2 blocks (1/3, 2/3 of height) to try to push the sheathing out. Huber feels that if the panels have moved they are likely not to move anymore as the moisture content of the panels is 12% manufactured.
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