QUESTIONHad shower tile work in my home. Seeking remedy with builder for poor workmanship and want to know if there are basic tile installation standards for quality installation? I have some toes bulging from the wall 1/16 inch or more, gaping at mitered corners and a lopsided niche. Help please! Thank you
ANSWERANSWER - Yes there are industry standards for workmanship. ANSI A108 .08-2013 4.0 General requirements for tile installations provides many of the workmanship requirements for the installation of tiles.
Walls cannot be out of plumb, or the required plane, more than 1/4" in 10 feet or 1/16" in 12 inches for tiles less than 15" in facial dimensions. Tiles that are 15" or larger cannot be out of plumb, or the required plane, more than 1/8" in 10 feet or 1/16" in 24 inches.
It states what the allowable tile lippage is for tiles with various grout joint widths. It has a section 4.3 on Workmanship, cutting, fitting, and grout joint size, and sections on other aspects of a tile installation.
Consumers should make sure their tile installers and their helpers are ITS Verified through the University of Ceramic Tile and Stone at www.CTaSC.com. This is an online course they can take that will verify that they know and understand the industry standards. Of course that doesn't teach them how to install tile properly. Consumers should ask for photos and references from their installers to make sure they will perform quality work.