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Vent: tired of guys insisting on full plywood subfloor when OSB is fine

Just did a 1,200 square foot basement in Portland with AdvanTech OSB and it's dead flat after 3 months of humidity. Why do people still pay double for plywood when the engineered stuff actually performs better in moisture?

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2 Comments

nina_lane162mo ago

Wait, are these the same people who think pressure treated lumber belongs indoors too? Genuinely curious what their reasoning is when the zip system stuff literally has a warranty for this exact climate.

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jamie7942mo ago

Heard a drywall guy say OSB is just "glued together sawdust"... but the stuff's come a long way...

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