Thorough Construction's lead carpenter Connor McKenna applies panel adhesive to the tops of the new, sistered joists before laying four-by-eight sheets of Georgia-Pacific Plytanium Sturdifloor on top. This is a tongue-and-groove subfloor that is strong enough to serve as the only layer under hardwood flooring.

Once affixed and locked in place, the Plytanium is nailed to the joists with traditional decks screws, never drywall screws, to create a stronger, better, quieter installation for the hardwood floors that will follow.



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