At Duane Mainardi Builders, your roof is more than just shingles — it’s a full system built to last. As a trusted South Jersey roofing contractor, we make it our mission to use only the best materials to protect your home, starting with what’s underneath: the roof decking.
Plywood vs. OSB: What’s the Difference?
In roofing, the debate between plywood and OSB (Oriented Strand Board) is common. OSB is cheaper and widely used, but it’s far more susceptible to moisture damage and sagging over time. Plywood, especially 4- or 5-ply structural panels, provides superior durability, stiffness, and resistance to rot.
We exclusively use high-quality plywood for roof decking to ensure long-term performance — because cutting corners isn’t in our vocabulary.
The Hidden Risk: Falsely Labeled Plywood
What many homeowners don’t realize is that some imported plywood may not meet U.S. structural standards. A 2019 lawsuit led by Freres Lumber and the U.S. Structural Plywood Integrity Coalition revealed that South American plywood was being fraudulently labeled as compliant with PS1-09 — the official U.S. Product Standard for structural plywood.
This means roofs built with these products could be weaker than expected, increasing the risk of damage, leaks, or even collapse under extreme conditions.
Why This Matters for Your Home
If you’re investing in a new roof, don’t just ask about shingles — ask about what’s underneath. As a local roofing expert, Duane Mainardi Builders guarantees that every job is done right, using only verified, U.S.-grade materials that meet or exceed national standards.
We don’t use imported panels that “look” the part — we use real, 4- or 5-ply agency certified American grown Fir plywood that performs as promised.
Ready for a roof you can trust?
Call Duane Mainardi Builders at (609) 923-4548 — your go-to roofing contractor in South Jersey for quality you can count on.
