Suspended Timber Floor Insulation Building Regulations

Timber suspended floor ground preparation remove top soil and vegetation apply total weed killer and 150mm min thick sand blinded hardcore then either i provide concrete ground cover of at least 100mm thick or ii prepare the ground to an even surface and lay a ground cover of concrete at least 50mm thick on.

Suspended timber floor insulation building regulations. Insulating and draught proofing an old suspended timber floor at ground or upper storey level above unheated spaces can save considerable energy. Renovation of more than 25 per cent of a solid or suspended floor involving the replacement of screed or a timber floor deck would have to meet the standards required by the building regulations approved documents. Previously floor timbers had been prone to damp and rot thanks to their direct contact with the moist ground. Suspended timber floor as a requirement of the building regulations the structure should be protected against the growth of weeds and other plant life.

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. A suspended timber floor tends to be cold and draughty because of the air circulating beneath it. In this blog post we aim to provide a simple practical guide to the best practice methods for fitting insulation boards such as kingspan kooltherm k103 floorboard into a suspended timber floor. To meet the part e building regulations in this scenario you need to achieve the following db figures and the test is based upon both airborne noise and impact.

Typically a renovator does not have to meet the same building regulations requirements and has. 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. Read more about changes to thermal elements in the external walls section. 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.

Insulating a suspended timber floor. Suspended timber floor as a requirement of the building regulations the structure should be protected against the growth of weeds and other plant life. Since 1990 when a modern timber floor is constructed insulation is required by the building regulations. This is a floor where the timber floorboards are attached to floor joists and the insulation suspended on timber battens between the joists.

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. If the insulation is soft insulation it can be suspended on netting fixed between the joists whereas rigid insulation can be sat on battens nailed to the side of the joists.