Timber Floor Insulation Options

There are a variety of options for the material used in suspended timber floor insulation.

Timber floor insulation options.

Fit acoustic insulation beneath the floorboards. Timber frame floors are typically insulated with polystyrene boards or sheet insulation made from glasswool fibreglass wool polyester wool polyester mix and mineral wool. To soundproof a timber floor you have a number of options. Fiber insulation is like putting an extra layer of clothing under a floor.

R 30 ecotouch pink unfaced fiberglass insulation roll 23 in. Thermal bypass affects performance so cutting out draughts is preferable. Concrete slab floors are typically insulated with polystyrene board. It acts as a thermal barrier to the heat that escapes from the wooden floor.

Get free shipping on qualified floor insulation or buy online pick up in store today in the building materials department. Kingspan achieving a u value of 0 25 would be a good target. Celotex kingspan type pir thermal insulation board. Polyester and fiberglass are the cheapest.

Ideally a fibrous insulation such as mineral wool or sheep s wool performs best between timber because it will take up thermal movement and cut down air movement around the insulation. That would need 90mm of rigid foam or 150mm mineral wool. Suspended timber floors can be thermally upgraded by lifting the floorboards to insert insulation or to avoid risking damage caused by disturbance placing it either from below or directly on top. Suspended timber floor with floorboards removed for most heritage properties the most effective and appropriate way to insulate a suspended floor and improve its airtightness is to retrofit insulation beneath the floorboards between the supporting joists figure 2.

Kingspan kooltherm k3 is fitted between timbers in a suspended floor image credit. Insulating concrete slab floors. Timber floors will typically have cavities under them which sounds will easily reverberate around in making it travel clearly between floors. On the other hand the noticeable impact of the insulation is likely to be greater.

Install acoustic grade underlay. Wood 55 see all. Permeable insulation such as sheep s wool hemp fibre cellulose or woodfibre board often works well with old buildings. 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.