General Information

Styro Stones


Interior walls can be treated in the same way as exterior walls, although usually a dry lined plaster board applied in the conventional manner is the preferred option.

The 50 mm internal insulation, already in place as an integral part of the Styro Stone system, forms a smooth and easy to render surface. Yet Another Saving!

Technical notes for plastering internal walls:

Wet finishes do not usually require a reinforcing mesh.

A polymerised cementitious layer is applied to the Styrostone* in an 2-3 mm coat and left to dry overnight.

The following day, a 2mm skim of multi-finish is applied.

For dry lining, simply fix plasterboard to the wall with dabs of dry wall lining adhesive in the conventional manner.

* The Styrostone surface can be roughened first with a wire brush or similar to provide additional key.

Fixing of Dry lining to Styro Stone:

A uniform layer of adhesive (see below) should be applied to either the polystyrene or the reverse of the boards using a 5mm notched trowel across the whole area of the board. The board should then be applied to the wall and leveled up.

Boards should be jointed using a construction grade adhesive in accordance with the manufacturer's instructions. Once the wall adhesive has set (typicaly 24 hours), frame anchors should be fixed through the boards into the concrete core. A minimum of 2 anchors per board is generally recommended.

All other jointing and finishing should be carried out in accordance with the manufacturer's instruction manual.

Two types of adhesive can be considered, rapid fixing, or a slower setting one. Both of these adhesives are manufactured by Indian companies and easily available. The manufacturer's instructions should be followed in use.

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