Expert Answers in Standards
Is it Ok to Install Tile Over Tile
ANSWER - Per the tile industry standards it is acceptable to install new tile over an existing tile installation. Of course the new installation is only as good as the underlying installation. If the only…Read More
What are the Sizing Tolerance Standards for Ceramic Tiles?
ANSWER - The manufacturing standards for ceramic tile (porcelain is a type of ceramic tile) in the USA are stated in ANSI A137.1 and ANSI A137.3 for Gauged Porcelain Tile Panels/Slabs. All ceramic tiles will…Read More
What are the Natural Stone Countertop Standards ?
ANSWER - The standard practice for suppliers and fabricators of natural stone slabs for countertops and other applications is to have the client inspect and approve the slab before fabricating it. Typically there is paperwork…Read More
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 More
Should Stone Countertop Backsplashes be Thinner than the Countertop
ANSWER - There are no industry standards for natural stone countertops that dictates how thick the backsplash is relative to the thickness of the countertop itself. All of the industry details for countertops depict the…Read More
What are the Standards for the Fabrication and Installation of Stone Countertops?
ANSWER - There is no mandate on where seams can or cannot be placed on a stone countertop, although the standards do state that the layout of the joinery of the countertops is extremely important…Read More
How 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 More
Why 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 More
How 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 More
Is 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…Read More