Ceramic and Porcelain Tile Expert Answers Exterior installation Installation Guidelines Installation Products - Adhesives Standards stone Vapor Barrier Waterproofing

What kind of Water Resistant Barrier or Vapor Barrier should be used For Exterior Tile Veneer Installations?

ANSWER  - W244E can be a ceramic or glass tile or a stone application for an exterior framed wall with cement backer board over it.   If it is a cementitious backer board then they would put…

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Ceramic and Porcelain Tile Expert Answers Grout installation stone

Why Sanded Grout versus Unsanded Grout?

ANSWER - Unsanded cementitious grout should only be used in grout joint widths of 1/8 inch or smaller.  If you use it in wider grout joints it will tend to crack. Sanded grout should be…

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Ceramic and Porcelain Tile Expert Answers Hollow Sounding Tiles Repairs stone

How do you repair hollow sounding tiles?

ANSWER - Hollow sounding tiles is not a defect per se.  Depending on the substrate and installation materials and methods being used the tile can have a hollow sound without anything being wrong. On the…

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Ceramic and Porcelain Tile Expert Answers Grout Standards stone

What are the standards for grout joint widths and properly filling with grout?

ANSWER - The Natural Stone Institute (previously the Marble Institute of America) Dimensional Design manual state that the grout joint on a stone should never be less than 1/16"  wide and preferably 1/8" wide.  To…

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Counter tops Expert Answers Maintenance Polished Repairs Stains stone

How do I remove a smudge on my new Granite Countertop?

ANSWER - Many natural stones that are produced around the world are treated with a type of sealer to enhance the color of the stone.  If some type of solvent gets on the countertop e.g.…

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Expert Answers installation Stains stone

Should Adhesive Spots show through Marble Tiles?

ANSWER -  We have seen where the installer will cover the entire tile with thin-set adhesive (back buttering) and then use globs or spots of the adhesive to attach the tile.  This is not an…

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Ceramic and Porcelain Tile Expert Answers Standards stone

How many bad tiles are acceptable in a tile installation?

ANSWER -  In terms of manufacturing of ceramic tiles, which includes porcelain tiles that are a type of ceramic tile, there are quality control standards in ANSI A137.1  that allow a small percentage of tiles…

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Ceramic and Porcelain Tile Expert Answers Movement Joints Standards stone

Can Movement Joint Widths be less than 1/4 inch as TCNA Handbook states?

ANSWER - TCNA Handbook does say that movement joints within the tile assembly should be at least ¼” wide, but the current version of the handbook does indicate that if your movement joints are installed…

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Caulk Expert Answers installation Movement Joints stone

Is it ok to butt a wood floor tight to a marble tile insert?

There should be a 1/8" joint between the wood and marble.  It would be best to caulk that joint as there is likely to be movement.   If you don't have a joint then when the…

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Ceramic and Porcelain Tile Concrete Substrate Slab Expert Answers installation Installation Guidelines Standards stone

What is the proper Installation Method for Installing Large Format Tiles?

ANSWER - It is hard to see exactly what they did.  Your message says “photo thin set 1/16” is on the floor, 1.5” to 2.5” of mortar mix with less than 90% coverage, and thin-set 1/16”…

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Ceramic and Porcelain Tile cleaning Expert Answers Maintenance Optical Haze stone Stone Restoration

How do you remove smudges from floor tiles?

ANSWER - First you need to determine what caused the smudges on the tile in order to determine how to remove them. If you have a polished porcelain tile there is a condition known as…

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Counter tops cracks Expert Answers Fabrication Slab stone

Is it normal to have a granite countertop have cracks that continue through the stone?

ANSWER - The Natural Stone Institute, formally the Marble Institute of America, Dimension Stone Design Manual states that "Cracks occur in stones as a result of man-made mechanically induced stresses during handling, fabrication, transport, or…

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Expert Answers Physical Properties Polished selection Slab stone

What is the difference between Limestone and Marble?

ANSWER: According to Pizzul Marmi Aurisina's website blog, due to their technical characteristics, stones are particularly suitable for different applications and, indeed, have been used since the ancient times of the Bronze Age in any kind of…

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cleaning Expert Answers Maintenance Stains stone Stone Restoration

How long will it take for Limestone to Dry from being wet, and will the dark spots go away?

ANSWER - There are 3 subcategories of limestone per ASTM C568.   Their physical properties vary from being vary porous to very low absorbing. How fast the limestone will dry depends on how absorbing it is,…

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cleaning Expert Answers Stains stone

What caused my limestone tile to develop a yellow/brown stain along its edge?

ANSWER -  Normally if you have a  yellow/brown rust-like color stain it is due to a combination of the stone being subjected to excessive moisture and due to the presence of metal, or that the…

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cleaning Expert Answers Maintenance sealers Stains stone

How do I remove the stains in my Granite Floor Tiles?

ANSWER - The dark color spots could possibly be due to underlying moisture below the granite tiles or they could be stains in the granite tiles. Granite is suppose to be technically impervious meaning low…

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cleaning Debonding Tile Efflorescence Staining Expert Answers Exterior failures Inspections Maintenance Stains stone

Why is my Bluestone Patio Tiles coming Loose and Have Efflorescence?

ANSWER - If the flagstone shaped Bluestone is loose and has excessive efflorescence staining then it wasn't installed correctly.   If the patio had been designed correctly and the stone installed properly it should perform well…

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Ceramic and Porcelain Tile cleaning Expert Answers Grout Maintenance Stains stone

What is the cause of my grout staining, and how can I remove the stain?

ANSWER - You didn't mention what kind of tile you had.  Natural stone of various types are known to contain ferrous oxide that can lead to staining in the tile or the adjacent grout. Since…

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Ceramic and Porcelain Tile Expert Answers Floor Warming selection stone

Can I use Travertine Tile over a Radiant Heated Floor, if not, what should I use?

ANSWER - As long as the tumbled travertine tile is installed correctly or a correctly installed radiant floor system, it should not be a problem. Note that using a natural stone will require more maintenance…

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cleaning Expert Answers Grout Stains stone

How can I clean the Grey Limestone Pebbles to remove the Brown Stain from Grouting?

ANSWER - There are different types of limestone.  The low density limestones are porous and more susceptible to staining.  Medium density limestones are less porous, and high density limestones are even less porous.   All of…

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