STONE –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– necessary to accommodate other trade and design revisions. These changes may require job site cutting and some finishing of stone, and this can be executed satisfactorily by qualified mechanics. 6.2 Repair or patching is sometimes necessary due to damage of material either on-site or in transit. By allowing these repairs to be made on-site, progress of the job can be maintained, thus aiding the successful completion of the work. Repairs should not detract from the desired appearance or strength of the completed installation. 7.0 STONE TILE INSTALLATION REFERENCES. The Natural Stone Institute has participated in the Tile Council of North America’s (TCNA) development of the Handbook for Ceramic, Glass, and Stone Installation. This document is reprinted every year, although the handbook committee meets only biennially, so substantial revisions are likely to appear only biennially. This handbook includes a section dedicated to the installation of stone tile products. The details are not duplicated in the Natural Stone Institute publications. Contact the TCNA (www. tcnatile.com) or the Natural Stone Institute’s Book Store to obtain a copy of the handbook. This document also contains informa- tion about: 8.0 TRIPS AND TRAPS OCCURRING IN THE INSTALLATION OF NATURAL STONE, including stone tiles with fiberglass mesh backing, green colored stone, travertine voids, sealant staining, efflorescence, down washed lighting, reflection, and polishing wheel marks. To view the complete document, visit https://bit.ly/2HMniEa online. –––––––––– Printed with permission from the Natural Stone Institute. *APA – The Engineered Wood Association, Voluntary Production Standard PS 1-07 Structural Plywood. 88 TileLetter | May 2018