Thermal insulation is usually installed below the floor slab in buildings featuring continuous low level heating.
Ground floor insulation detail.
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Boards or blankets of insulation can be fitted between the joists aim to fit at least 100mm rigid foam or 150mm blanket insulation.
See selecting the right grade of floor insulation for your product below.
Ground bearing floors can include insulation either below or above the concrete slab depending on the choice of the designer.
Ground floor insulation below concrete slab.
These overall r values of slabs as constructed do not allow for thermal bridging caused by discontinuities in compressible extruded polystyrene xps insulation as may be necessary where the slab underside bears on concrete.
This insulation strip should be the full depth of the concrete slab and the top edge should be level with the top of the floor screed.
Semi rigid insulation can often be friction fitted or held up by battens attached to the bottom of the joist.
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Alternatively blanket insulation will need to be held up by netting and tacks stuck into the joists.
Unbuildable solution assumed by nathers for continuous insulation of on ground concrete floor slabs.
Installing floor insulation above the slab and below the screed.
It helps make effective use of the thermal mass of the concrete slab rather than repeatedly warming it and allowing it to cool.
For low rise buildings on poor ground the floor slab can be designed as a raft to act as the foundation.
Exposed wood framed floor insulation insulating the exposed floor can make the space more comfortable reduce the incidence of frozen pipes help stop mold problems and help save on overall energy costs.
Kingspan vips offer an ultra thin build up of just 26mm image credit.
View our range of floor insulation here.
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Jablite floor insulation is manufactured to a range of compressive strengths providing a solution for every type of ground floor application.