But there s a risk with solid slabs.
Timber ground floor construction details.
E6 intermediate floor within a dwelling.
All the figures are based on normal domestic floor loadings where the floor construction is typically 18 25mm floor boards sheets with up to 12 5mm thick plasterboard and skim underneath.
3 10 ground bearing floor slab.
Ce 200 details of construction.
Suspended timber ground floors consist of the finished timber floorboards being attached to floor joists which are suspended above the subfloor of the foundation.
Floor joists spaced on regular intervals span the areas between supports such as walls foundations girders and beams.
Construction studies drawing detail of suspended timber floor.
The following table gives details of allowable spans and spacing between joists for the most common timber sizes used in floor construction.
These floor joists are raised above the subfloor on small supporting walls called tassel walls or sleeper walls.
Construction details construction details.
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.
E13 gable insulation at rafter level e3 sill.
E18 p1 party wall between.
They can normally span greater distances than timber joists.
Insulation above slab.
Government accredited details developed by bre for local government.
3 16 ground floor timber separating wall.
The ends of these timber joists are built into or suspended by joist hangers from the external walls of the property.
Ground floor hollow or timber floor hollow floors also known as suspended or timber floors are simply timber joists suspended across and supported by load bearing walls under the floor.
Ground floors built of solid concrete remain popular with small builders and can often be an economic solution for home extensions.