Standards stone Testing

How to differentiate granite by grade/quality?

ANSWER - It is very difficult to differentiate granite let alone any other stone. People in the trade through experience may be able to notice key characteristics by looking, but even then it is…

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Ceramic and Porcelain Tile installation Standards

Any issues with Installing Ceramic Tile on a Counter Top?

ANSWER - No, there should be no issues with a counter top type of installation if installed correctly and per industry standards, such as: a. This design or assembly can be found in the Tile…

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installation Movement Joints selection Standards

Sealant/caulking for tile near woodstove withstand high temperatures?

ANSWER - AccuColor sanded siliconized acrylic latex caulk does not meet industry standard ASTM C920, per TCNA EJ171 Movement Joints, and should not be used in tile or stone installations. It is commonly used in…

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installation Movement Joints Standards Wet Areas

What size backer rod should I for tub and wall tile?

ANSWER - The polyethylene backer rod is not likely the cause of your cracking at the tub to shower wall transition, but if there is room for it in that joint, then you should use…

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Slab Standards stone

Industry standards for granite seams and the splitting of seams?

ANSWER - Countertops are to be flat within 1/8" in 10 feet. Transition joints from counter to wall or other material is to be 1/8" with a tolerance of +/- 1/64". Joint seams widths are…

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Standards stone Testing

What grade is COAST GREEN granite?

ANSWER - There is no such industry standard that grades granite with numbers like that.  Marble has a class A, B, C, D and that has nothing to do with granite. Without checking, Coast Green…

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Grout installation Standards

Is there a standard for grout joint width?

ANSWER - The ANSI and MIA standards do say grout joints should never be less than 1/16" wide, and depending on the type and size of tile they should be wider. It is recommended to always…

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Ceramic and Porcelain Tile Concrete Substrate Slab cracks installation Standards

Will cracks in foundation cause my tile to crack?

ANSWER - Per our industry standards for ceramic tile and stone and from a practical point-of-view, any concrete substrate that has shrinkage cracks should be isolated with a crack isolation membrane. If the cracks are…

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installation selection Standards

Difference between latex modified thin-set and polymer modified thin-set?

ANSWER - There are modified thin-set adhesives that meet ANSI A118.4 or ANSI A118.15.  They can either me latex modified thin-set where you add the appropriate liquid latex rather than water or there are polymer modified…

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