Thermal insulation of the slab edge

A thermal bridge is an area of a building's structure through which heat escapes to the outside faster than through the rest of the building. It wastes valuable energy and also encourages mould. Proper thermal insulation stops harmful thermal bridges from forming.

Preventing energy losses

Thermal bridges can occur in many places — at window lintels and reveals, at the edges of slabs, at ceilings, columns and beams, at concrete parts in masonry walls and at internal concrete surfaces. They form wherever different building elements meet, especially elements of different thickness. Slab edges are particularly critical; insulating them properly is key to keeping the structure "healthy", i.e. to preventing a thermal bridge.

Austrotherm XPS TOP P – for insulating the slab edge

Austrotherm XPS TOP P, the pink insulation board with a rough surface, is a cost-effective and, above all, technically optimal way to prevent a thermal bridge at the slab edge.

Austrotherm XPS TOP P is installed as a formwork ring around the slab. The rough surface is chosen because the adhesive or render (normally applied from outside as the facade finish) bonds much better to a rough surface than to a smooth one. Our pink board is easy to cut to fit the available space, so corners and angles of the slab are no obstacle to insulating it from the outside.

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