Roofing Decking: OSB vs. Plywood and When to Replace It

Damaged or soft roof decking discovered during a tear-off adds $75–$120 per sheet. Here’s how to evaluate decking condition and when replacement is necessary.

What Is Roof Decking?

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OSB vs. Plywood for Bay Area Homes

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Signs of Decking Damage

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How Much Decking Needs Replacement

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Moisture-Resistant Options

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Cost and How It’s Invoiced

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Written by

Alpha Eagle Roofing • Licensed Roofing Contractor • CA CSLB #1148511

Alpha Eagle Roofing is led by a Bay Area roofer with 15+ years of local field experience. Every article is written or reviewed by a licensed C-39 roofing contractor with direct project experience in the Bay Area’s unique climate and building codes.

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