Subfloor Construction Details

Draw up a basic floor framing plan.

Subfloor construction details.

Good subfloor construction depends on material selection and attention to critical details. Before you begin cutting or measuring grab a pencil and paper and sketch an outline of your floor. In basements and in homes with slab on grade foundations the subfloor may simply be a concrete slab. The subfloor is the foundation beneath finish flooring materials.

69 chapter 4 floor construction woodframe floor systems and concrete slab on grade floors are discussed in this chapter. It may be made of boards laid either at right angles or diagonally across joists. So the subfloor and maple are installed. During this video we will identify key installation practices th.

This process takes 4 5 days. Like other framing components beam and joist floor frames are often pre constructed transported to the site and attached to stumps or less commonly to a slab foundation although they can be constructed on the site as well. In cases where latex subfloor glue is required careful selection is necessary due to the wide range of performance between brands. Extremely long spans staircases or interior walls typically require additional support which can complicate your framing.

Subfloor construction floors may be built on beams or joists 1 or use structures like prefabricated hollow core slabs. Subflooring provides a base for finish flooring and also serves as a platform during construction. Now we get on our giant ride on sander and sand that wood. All subfloor framing was separated from the concrete or concrete blocks depending on the foundation wall construction by a bitumen impregnated fabric damp proof course dpc to protect the timber from moisture.

These subfloors do not have the solidness of a concrete slab but offer a wide variety of potential floor covering. The subfloor builds on those and attaches by various means particular to the support structure but the support and subfloor together always provides the strength of a floor one can sense underfoot. Or the subfloor may be made of plywood or other panel products that are laid perpendicular to the joists. A glue nailed construction technique is optimal for ensuring a flat stable floor.

On wood frame floors the subflooring provides a continuous structural surface over the floor joists. Rather the reader is referred to the aisi standard for cold formed steel framing prescriptive method for one and two family dwellings aisi 2001 for guidance. Timber used for subfloor framing was commonly wet or green. We will sand the floor 3 times once with coarse sand paper once with medium sand paper and once with fine sandpaper until it is smooth and even.

Although cold formed steel framing for floor systems also is permitted by the irc it is not covered here.