Suspended Timber Floor Insulation Building Regulations

Commonly in this scenario the floors are standard timber joists with floor boards laid on top no insulation between joists and a standard 12 5mm plasterboard on the ceiling below.

Suspended timber floor insulation building regulations. To make sure the insulation boards are flush with the top surface of the joists they should be supported on minimum 25 mm x 25 mm treated softwood timber battens proprietary galvanised steel saddle clips or galvanised nails partially driven into the side of the joists. Read more about changes to thermal elements in the external walls section previous building regulations. 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. Building regs for suspended timber floors weed prevention under the floor concrete must be poured on the ground below a suspended floor ventilation air bricks are required to provide ventilation from outside to under the hollow floor.

Care must be taken however not to harm the character and significance of the building or impede subfloor ventilation for example by blocking air vents so promoting timber decay. Installing any amount of insulation will warm the floorboards and go a long way towards eliminating draughts. Span the timber specific to the spacing and. For optimum results when addressing heat loss through a suspended timber floor the specification needs to ensure that high levels of thermal performance delivered by the insulation material are combined with airtightness and moisture control while at the same time facilitating a degree of breathability.

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 tends to be cold and draughty because of the air circulating beneath it. The effect is a greater sense of comfort and that in turn allows the homeowner to turn the thermostat down. 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 floor as a requirement of the building regulations the structure should be protected against the growth of weeds and other plant life. Insulating and draught proofing an old suspended timber floor at ground or upper storey level above unheated spaces can save considerable energy.