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Just read that plywood with more than 5 plys is actually weaker in some situations - any truth to this?
I was looking at some construction specs from the APA and found a detail saying that standard 3/4" plywood with 13 plys can have lower shear strength than 7-ply stuff depending on the glue type. Has anyone else run into this or am I reading that chart wrong?
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emma_smith4d ago
Honestly, I remember my buddy tried using some high-ply stuff for a shed roof and it just started peeling apart at the edges after one winter. He got that 13-ply fancy marine grade stuff but the glue was the wrong type for the moisture around here. Ended up having to cut out whole sections and replace them with plain old 7-ply from the big box store, that stuff's still holding up fine after three years now.
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victor_perry904d ago
Yeah that makes sense, bad glue can ruin anything no matter how many layers lol.
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