Natural stone is recommended to be fixed with the use of mortar or adhesive on a reinforced concrete slab. If calibrated 30mm or greater paver is to be used, a suitable crush rock base can be used for pedestrian traffic, however we recommend that the pavers be installed using a mortar bed rather than sand to give better stability to the finished product.
Natural stone can have a size variation of +/- 2mm in thickness and dimensional size, therefore it is recommended to lay the stone with minimum of 5-8mm grout gaps. Travertine, limestone & Granite can have a more precise cutting method therefore have smaller variations from each tile that can be laid with a minimum 3mm gap.
Particular attention should be paid to expansion joints in both their location and installation. Expansion joints should be used at every change in coping direction, at intervals no greater than 3.5 metres, between paving and any walls, wherever there is existing cracking in the foundation or bedding material and wherever there are existing expansion joints being covered over.
All stone must be checked prior to installation for damage, colour variation and imperfections. All stone will be deemed accepted once installed.
Stone must be randomly selected from multiple crates to create the colour blend required. Do not select and lay from any one crate at a time.
Pool coping, especially the Square edge and drop face copers, make sure the copers are measured and graded prior to laying. Some copers can vary +/-2mm in thickness and it is important to grade similar thicknesses for each section of the pool.