Suspended Timber Ground Floor Construction Details

2 12 timber suspended floor.

Suspended timber ground floor construction details. This allows air flow and ventilation to prevent the mould and dry rot that would otherwise occur over damp ground. Although timber ground floor construction used to be a popular method today it is not as common as the concrete alternatives. 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. The ground should have a layer of concrete poured across and there should be a ventilated gap of at least 150mm between the underside of the timbers and the concrete to prevent moisture.

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. This void underneath the suspended floor was. 5 1 18 laying the ground bearing floor slab. 5 1 17 ground floor slab and concrete.

Different types of ground floor suspended flooring. These floor joists are raised above the subfloor on small supporting walls called tassel walls or sleeper walls. 6 3 10 construction of steel framed partitions. Suspended timber floor as a requirement of the building regulations the structure should be protected against the growth of weeds and other plant life.

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. Insulation above slab. We explain how hollow or suspended floors are made and what the key building regulations that affect them are. Supports underneath the floor are permanent and include sleeper walls or timber props placed at regular intervals.

3 10 ground bearing floor slab. Suspended timber ground floors consist of the finished timber floorboards being attached to floor joists which are suspended above the subfloor of the foundation. This chapter gives guidance on meeting the technical requirements for suspended ground floors including those constructed from. Government accredited details developed by bre for local government.

Unlike standard ground floor construction suspended floors are not sitting directly on the ground. 6 3 9 construction of timber partitions. The standard form of construction became the timber floor structure positioned over compacted earth with an air space in between.