Expert Answers in Standards
Are there tolerances for natural stone edge profiles to be consistent looking?
ANSWER - The Marble Institute of America (MIA) Dimension Design Stone Manuel Version 8 says for bullnose or other rounded shaped profile edges that the allowable tolerance is no more variation than +/- 1/32 (+/-…
Read More
Ceramic and Porcelain Tile
Expert Answers
Grout
Installation Guidelines
Movement Joints
Standards
Workmanship
Are there Tolerance Standards for Grout or Caulking Joint Width Variation?
ANSWER - You are correct to install caulked movement joints at the perimeters and inside vertical corners of the tile installation. Caulk should be an ASTM C920 silicone sealant per TCNA EJ171 standards.
The ceramic…
Read MoreWhat is the acceptable amount of Tile Lippage for a Tile installed on a Wall with a 1/8" Grout Joint?
ANSWER - Tile lippage is the difference in height between two adjacent edges of tile, or of a crack or of a control joint in concrete. ANSI A108.02-2013, section 4.3.7 Lippage states that a ceramic…
Read More