Timber Floor Insulation Detail

The floor would typically be finished from above with a vapour control layer vcl if required and a suitable timber floor deck.

Timber floor insulation detail. Solid external masonry wall. Insulating a suspended timber floor. 215mm aircrete solid wall λ 0 15 w mk render insulation λ 0 022 w mk pitched roof gable. As well as the small selection of floor detail drawings shown here many of the building notes have a related construction detail drawing with specific dimensions eg rafter sizes spans insulations types for purchase with the building specifications.

It is available in various thickness 50mm and 100mm are the most easily available and in a variety of sizes commonly in the size of 2 4 x 1 2m. Celotex kingspan type pir thermal insulation board. Installing any amount of insulation will warm the floorboards and go a long way towards eliminating draughts. An important consideration is to ensure that the insulation product used fills all gaps between joists to prevent air movement which can lead to unwanted heat loss.

Rockwool offers stone wool insulation products to meet and exceed thermal regulations in floor constructions as well as solutions for separating floors to prevent heat transfer between the upper and lower floors. 150mm insulation 0 044w mk between rafters. 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. Some support may be needed for the insulation timber straps timber battens or netting can all be utilised to help keep the insulation in place.

There are a variety of options for the material used in suspended timber floor insulation. This guidance is for surveyors and installers who are considering the suitability of timber floors to receive retrofit insulation safely and effectively. Insulation is placed between the joists and supported on netting e g. 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. Polypropylene or timber battens.