Installing the Subfloor

Project: Manhattan Remodel and Cape Cod Affordable, Episode 2, Part 2



The big story is the cornice molding found in tact when the drop ceiling came down. The molding will set a tone for the main living space, where the bricks have been removed to install a flue liner and drafting fireplace. All of the 40s wall, surface, and ceiling treatments are gone, along with the lath and plaster, leaving the bare brick and exposed joists from the original construction. Remodels have cut into the joist work or damaged it, so some reworking will be necessary to build up for the floors and ceilings. The floor joists are sistered to make a level, solid footing for the Georgia-Pacific Plytanium subflooring that goes under the wood floor. Laser levels allow the carpenters to set level lines throughout the apartment horizontally for the floor and vertically for the new steel studs they are installing. Finally, a flexible flue liner is run through the wall, and up the chimney for the new fireplace.
Part 1: Installing the Subfloor

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.

Part 2: Installing the Chimney Liner
Part 3: Installing Steel-Stud Framing
This project deals with two very different notions of home. Bob begins on New York City's Upper West Side, where an 1890s Brownstone is revitalized through high-quality craftsmanship and sensitive design. New York's past meets its present, as the entire floor is recaptured and refurbished to create a spacious urban apartment on the doorstep of Central Park.

At the same time, Bob works with a Cape Cod developer to apply Massachusetts land use statute 40B to create affordable housing, and a neighborhood of homes in Mashpee, MA. These Energy Star certified homes show how quality building practices and reasonable asking prices can work together to provide livable, affordable homes and neighborhoods to those who work in our communities.

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