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Large Porcelain and Glass Bodied Tiles

Cure (contiinued)

up for examination. Beating-in only of larger tiles generally is not effective. Average contact area shall not be less than 80% except on exterior or wet area installations (see TCNA Handbook for wet area definition) where contact area shall be 95% when not less than three tiles or tile assemblies are removed for inspection. Check tiles for presence of loose white powder (manufac turer’s release agent) on back of tile. If necessary, brush or remove white powder before attempting to bond tile. Porcelain tiles have extremely low water absorption rates. As a result, the setting time of many latex-Portland cement mortars may be extended. Therefore, working on or expos ing the installation to traffic prior to a good bond forming may result in poor performance of the completed job. Proceed with caution when installing large porcelain tiles over substrates subject to bending or deflection. When installing materials with special or unique properties, the code minimum may not be sufficient to provide satisfactory performance. Each project presents its own conditions; consult with owner or builder to determine if any modifica tions to the structure can be done prior to the installation when you suspect problems or have concerns. Web floor trusses and engineered I-Joists are used in ways that weren’t possible with traditionally sawn lumber. Be aware of the conditions you face prior to installation so adjustments can be made if necessary. See NTCA’s doc ument on Installations over Engineered Wood Products in Chapter 2 for additional information. Require architect or construction manager to locate and design the construction of movement joints in tile work as recommended in the TCNA Handbook. Design, loca tions, spacing, and actual installation must conform with requirements in the TCNA Handbook and ANSI Standards. Movement joint recommendations apply to residential construction as well as commercial and industrial con struction. When faced with installation of large porcelain tiles or tiles with glass in the body, insist on using latex-modified Portland cement mortars when they are not specified. Also, require mortar manufacturers to furnish test results showing bonding and flexural capabilities of mortars and bondability of tiles from tile manufacturers.

Arizona Tile Themar Statuario V Porcelain

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Chapter 5 | Material Specific Products and Installation