Suspended Timber Floor Insulation Building Regulations

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.

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. This is a floor where the timber floorboards are attached to floor joists and the insulation suspended on timber battens between the joists. 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. Best practice for insulating a suspended timber floor part 2.

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 gathering and affecting the condition of the joists. 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. Previously floor timbers had been prone to damp and rot thanks to their direct contact with the moist ground. I can t get a definitive idea of the best way to do it.

Suspended timber floor as a requirement of the building regulations the structure should be protected against the growth of weeds and other plant life.