Structural joints should follow those already present in the building and should be of a size consistent with the expected movement and coefficient of the linear thermal dilation for the Euro Agglomerated Marbles to be installed. Other joints must be planned along the perimeter of the floor and around any structures such as columns or posts. It is a good idea to plan an open joint of 10mm because it will be influenced by the foundation, the adhesive and the tile.
In new build and existing applications expansion and movement joints should be at the very least incorporated within the substrate and finished tiled surfaces at perimeters, abutting new materials, screed junctions and within bays of between 4x4 meters and 7x7 meters and in accordance with the specified specification. In any case, we suggest a width of at least 5mm. In places where a marble will be in direct sunlight, especially if it is of a dark color, we recommend larger expansion joints.

For a successful laying of marbles, it is advisable to place the marbles with open joints, or with nominal joints.

A grouting compound consisting of acid or alkaline components must not be used. Most cement, resin or latex based grouting products are suitable, but these should be tested on a sample panel prior to carrying out works on site; always follow manufacturers instructions. If cement grout is used, mix the cement and water so that the consistency of the paste is suitable for the purpose. Do not use too much water or sand, because sand could scratch the marble surface. Remove any excess grout or sealant while it is still moist using a soft, damp cloth or sponge. Never use acidic products to do this, as it will remove the shine from the marbles. Once the marbles have all been laid, the floor should be thoroughly cleaned and protected until it is ready to be used.