Substrates

The solidity of the sub floor onto which tiles are intended to be laid, must be suitable for the purpose intended. The floor surface must be level, dry, clean and free of any dust, grease or loose material. This counts for both exterior and interior floors.

Sand & Cement Screeds

A dry, level screed is ideal to fix stone onto. For new screeds you must ensure that it is fully dry or cured before stone installation. A general recommended drying time is 20-30mm per week but possibly longer with adverse weather conditions.

Stone on Timber Floors

Timber floors must not flex and the extra load weight of the natural stone tiles must be accounted for. To guard against the damaging effect of movement fix 18mm plywood over the floor in a staggered pattern and screw down firmly at 140mm centres .

A flexible adhesive and grout must be used when fixing onto timber floors.

Existing Glazed, Clay & Stone Flooring

All loose tiles should be removed and the remainder of the floor should be degreased and free of surface contaminants.

Stone on Cork , Vinyl & Wooden Flooring

Cork , vinyl and wooden flooring (i.e. parquet flooring) should be fully removed and any bitumen left on the floor should also be removed.

Stone on Underfloor Heating

There are two basic systems of underfloor heating, an electric mat system and a water piped system. Both systems require flexible adhesive and flexible grout. Please check with your adhesive supplier about suitability.

Stone on Unleveled Floors

A floor that has hollows and minor bumps can be leveled out by applying more or less adhesive to the underside of individual tiles during installation. In the case of a very uneven floor, a levelling compound should be used.