Expert Answers in Standards
What is the Stone Industry Standard for the Allowable amount of Marble Tile Lippage?
ANSWER - Per the Natural Stone Institute Dimension Stone Design Manual the tolerance for the allowable lippage for a for a calibrated marble or any calibrated natural stone floor tile is 1/32". This is based…
Read MoreHow thick should the Mortar Bed for a Shower Pan Floor in a Shower?
ANSWER - First of all, the way you construct a shower pan is to first apply a pre-sloped mortar bed to establish a slope to the drain of 1/4" per foot. You can float over…
Read MoreWhy is by Exterior Covered Deck Tile Backer Board Installation Causing Tile to Crack?
ANSWER - Normally when you get cracking over a suspended floor following the joints of the tile backer board that the tile was bonded to, it is due to a combination of excessive deflection in…
Read MoreHow do we determine what caused our Tile Shower to Fail?
ANSWER - You are asking a lot that can't be answered without performing a forensic inspection to determine what is causing the failures. I can make some general statements that may or may not apply…
Read MoreIs it a problem if Schluter Ditra is installed on the walls of a Steam Shower?
ANSWER - Based on the Schluter literature, although they only show floor applications, they don't say it is only for floors. The Ditra is waterproof if installed correctly for waterproofing. It does have a key…
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