Ground Floor Slab Insulation Details

Ground floor insulation below concrete slab thermal insulation is usually installed below the floor slab in buildings featuring continuous low level heating.

Ground floor slab insulation details.

These codes do not require any insulation for slabs that are more than 12 in. Below grade need vertical insulation at the slab perimeter. 4 10 2012 5 floor surfaces less than 12 inches below grade shall be insulated. Alternative solutions 4 and 5 for continuous insulation of on ground concrete floor slabs.

Depending on the use of the building the slab can then be finished ready for use or receive a screed suitable for a floor finish. Insulating a solid ground floor below the ground bearing concrete slab can be done using either pir insulation boards or eps insulation boards. 4 10 2012 10 a problem with 2. For the floors of industrial.

Otherwise both codes require that slab on grade floors with a floor surface less than 12 in. These overall r values do not account for the heat sinking effect of concrete piers where they are included to support a slab footing from below. Check with manufacturer for approval for ground contact. Eps can be a cost effective alternative to pir for floor insulation and the same thermal performance can be achieved with increased thickness.

It helps make effective use of the thermal mass of the concrete slab rather than repeatedly warming it and allowing it to cool. Where insulation is positioned above the slab. If the insulation is going below the slab the damp proof membrane dpm is laid next followed by the insulation a polythene separating layer and the concrete slab.