Expert Answers in stone

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…

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”…

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…

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…

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…

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,…

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…

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…

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…

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…