Glass and Stone Tile Installation. – Mark Heinlein NTCA Training Director QUESTION We were searching for informa- tion about just how flat the surface needs to be before installing a 12” x 24” tile. Any information you can share is appreciated. ANSWER There are standards for how flat a surface should be before we install tile on it. A 12” x 24” falls into the category of a large-format tile. A large-format tile is defined as any tile that has one side that is 15” or more. The standard is found in both the TCNA Handbook for Ceramic, Glass and Stone Tile Installation and the ANSI manuals. The maxi- mum allowable variation is 1/8” in 10’ and no more than a 1/16” in 20’. I hope this helps. – Robb Roderick, NTCA Technical Trainer QUESTION I have a client who had flood- ing in her house. She has multiple areas with tile; she had some work- ers out to remove the laminate floors but broke a tile. She said the gentlemen just bumped the tile and it broke. I was wondering – if an area is flooded – can it dam- age the tile, or can they dry it out and it’s good to go? Please advise; I need some expert advice on this one. PRIME-N-BOND™ is a versa- tile primer designed to enhance the adhesion of mortars to smooth and non-absorptive substrates that can be difficult to bond to. PRIME-N-BOND does not require mixing, making it ideal for use in interior or occu- pied areas. Additionally, this product improves the bonding of self-leveling underlayments over cementitious substrates. PRIME-N-BOND is available in one gallon (3.79 liter) and 3.5 gallon (13.25 liter) pails. For more information, visit www.laticrete.com. ASK THE EXPERTS –––––––––––––––––––––––––––––––––––––––––––––––––––– 24 TileLetter | April 2018