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Floor Construction Methods

Learn all about the different types of floor construction.

Excerpted from Do It Yourself Home Improvement

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Balloon Framing and Foundation

Introduced during the mid-1800s, balloon framing is no longer a popular framing system. Balloon framing uses the same type of members as platform framing, but with more substantial sized material for studs. Studs in a balloon frame run continuously from the sill all the way to the rafter. The second floor joists are supported on a ribbon instead of a joist header. Firestopping is added to the spaces between the studs, which provides a space for mechanical system installation. The foundation for a balloon frame is constructed the same as in the platform framing method. There is a sill plate attached to the foundation, and joists run perpendicular from the sill plate. The studs are then attached to the joists, and run the entire height of the house. The subflooring is installed on top of the joists.

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