Quarry tiles

• Being hardwearing and with a good resistance to water , quarry tiles are suitable for kitchens and entrance halls , but they tend to be noisy and cold . 
• Quarry tiles are produced as square tiles in sizes ranging from 100mm x 100mm x 20mm to 225mm x 225mm x 32mm thick . 
• 3 Method of laying quarry tiles are recommended to allow for differential movement due to drying shringkage or thermal movement of the screed . 

First method

• To bed the tiles in a 10-15 mm thick bed of cement mortar over a separating layer of sheet material such as polythene , which could perform the dual function of damp-proof membrane and separating layer . 

SEcond method

• To avoid the use of separating layer , the thick bed method can be used . 
• WIth this method , the concrete subfloor should be dampened to reduce suction and then socered with a semi-dry 1:4 cement and sand mix to a thickness of approximately 40mm . 
• THe top surface of the compacted semi-dry thick bed should be treated with a 1:1 cement and sand grout before tapping the tiles into the grout with a wood beater . 

Third method

• Alternatively , a dry cement may be trowelled into the thick bed bedding in the tiles .