installation Standards

How thick should wood subfloor be and what size trowel?

ANSWER - There is a lot more to a proper configuration of a subfloor for tile than just the thickness of the subfloor. It is normally recommended to have at least 23/32" thick tongue and…

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installation Standards

Industry Standards for thin-set contact for adhered tile applications?

ANSWER - The reference standards for thin-set contact can be found as follows: 2013.1 ANSI A108.5-3.3.3 states ...coverage with the corners and edges fully supported. 2014 TCNA Handbook - substrate requirements - Mortar and Mortar…

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selection Standards Testing

I am concerned about the breaking strength of a tile

ANSWER - The breaking strength minimum industry requirement for ceramic tile is a laboratory test of what is mostly an unsupported tile and isn't directly meaningful in terms of determining what kind of dead and…

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Glass Tile installation Lippage Standards

How much lippage is acceptable for glass tiles?

ANSWER - There are no specific standards for lippage for glass tile, although I think it could be reasonable to apply the ANSI A108 standards for ceramic tile to glass tile. The standard says that…

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Grout sealers Standards

Are there Standards for Sealing Grout?

ANSWER - There are no standards that say that the tile or grout should be sealed. Although some manufacturers or suppliers of products recommend sealing depending on the type of tile or the nature of…

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Glass Tile installation Lippage selection Standards

Is there a warning for installing Large Format Glass Tile?

ANSWER - I assume you are referring to a rectangle tile. These tiles tend to be installed in a off-set pattern so the tiles are stagger from each other. ANSI A108.02-4.3 does state that tiles that…

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installation Standards

How to install tile on a Ceiling?

ANSWER - With a large format tile like that you can adhere it to the ceiling without a mechanical attachment unless your local codes require a mechanical attachment. The International Building Code (IBC) allows for…

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Grout installation Standards

Can I Eliminate The Grout Joint Between Limestone Tile?

ANSWER - You are correct that there should be grout joints between the stones.  The purposes of grout joints are to allow for adjusting for irregularities in the sizing of the stone, to provide support and…

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selection Standards stone Wet Areas

Are Onyx slabs suitable for shower wall applications?

ANSWER - Yes there are standards for the installation of onyx slabs, which are the same as the standards for marble. All geological classifications of stone have minimum/maximum values for their physical properties, and onyx…

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Ceramic and Porcelain Tile installation Lippage Standards

What is allowable lippage between a 13x13 inch tile and mosaic

ANSWER - There isn't a clear standard for what is allowable maximum lippage between a 13 x13 inch tile and mosaics, but I would expect it to be 1/16". For 1x1 inch tiles it is…

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