Suspended Timber Floor Construction Detail

Building and understanding a suspended or hollow timber floor.

Suspended timber floor construction detail.

3 10 ground bearing floor slab. 5 2 suspended ground floors this chapter gives guidance on meeting the technical requirements for suspended ground floors including those constructed from. We explain how hollow or suspended floors are made and what the key building regulations that affect them are. Wall ground floor junction scottish building standards.

This construction is similar to the timber floor above but uses either pre cast concrete planks or small pre cast concrete beams with concrete blocks laid between the beams. Insulation above slab. Suspended timber floors need to have spaces underneath ventilated via air bricks through the outer walls and gaps in any internal walls so that the air can move across the building underneath the floors to prevent the build up of moisture in the timber which could lead to fungal attack. The floor can be formed in various ways using timber joists precast concrete panels block and beam system or cast in situ with reinforced concrete.

A suspended timber floor is constructed as a timber platform of boards nailed across timber joists supported on sleeper walls and the external and internal load bearing walls surrounding them. Whether building a ground floor suspended timber floor or a first floor hollow floor we explain the different options and techniques that you can use in its construction. 2 12 timber suspended floor. Different types of ground floor suspended flooring.

09 timber flooring design guide page 6 1 timber flooring and floor finishes 1 1 movement in timber floors prior to discussing timber flooring products it is important to understand the relationship between timber humidity in the air surrounding it and the dimensional changes that occur as the result of changes in humidity. Government accredited details developed by bre for local government. A suspended floor is a ground floor with a void underneath the structure. They can normally span greater distances than timber joists.

Although timber ground floor construction used to be a popular method today it is not as common as the concrete alternatives. These floor joists are raised above the subfloor on small supporting walls called tassel walls or sleeper walls. Suspended timber ground floors consist of the finished timber floorboards being attached to floor joists which are suspended above the subfloor of the foundation.