System And Method Of Installation Porphyry Stone
Approved porphyry stone “mosaic or random tiles” tiles are laid, in random pattern or orderly pattern, over a bedding mortar above a concrete slab or a compacted Substrate.
Mortar joints in ‘Mosaic or Random tiles, Cobblestones and Split Tiles’ shall be to a maximum of 25mm and a minimum of 10mm to have a uniform pattern, the preferred finished level of the grouting is 3/5mm below the finished level of the tiles.
Grouting of Sawn Tiles shall be of a continuous 3mm joint (or other Specified but not less the 3mm).
Paving which does not comply with these tolerances will …