Suspended Timber Ground Floor

All ground floor constructions unless very large commercial floors will require some insulation to be included within the floor zone to comply with building regulation requirements.

Suspended timber ground floor. A suspended floor is a ground floor with a void underneath the structure. If the ground floor in question is of a suspended timber construction and whether this is a renovation or new build project then the insulation would normally be installed in the joist zone that is installed between the joists. Suspended timber ground floors. 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 creates a small gap and allows ventilation and air movement to prevent damp forming in the timber joists. 5 1 18 laying the ground bearing floor slab. However the floor structure is supported by external and internal walls. To a degree this type of floor can give more comfort when your intention is to carpet the floor and when the floor is well insulated this can create a degree of sound proofing when used in upper floors.

Previously floor timbers had been prone to damp and rot thanks to their direct contact with the moist ground. 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. 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. This chapter gives guidance on meeting the technical requirements for suspended ground floors including those constructed from.

These floor joists are raised above the subfloor on small supporting walls called tassel walls or sleeper walls. 5 2 2 provision of information. 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. Suspended timber floors are normally made up of timber joists suspended from bearing walls which are then covered with either floor boards or high quality sheets of tongue and groove.

At the turn of the 18th century when construction techniques moved from boarded floors installed directly on the ground to suspended timber floors over a ventilated chamber the innovation solved a significant problem. Suspended timber floors which are typically found in older houses are normally made from timber floorboards which are then attached to joists just above the foundations of a house.