Caulk Ceramic and Porcelain Tile Expert Answers Movement Joints Sealant Caulk

What size and type backer rod can I use for Movement joints?

ANSWER - The closed-cell foam backer rod is suppose to be wider than the movement joint.  You can compress a 1/4" foam backer rod into a 1/8" wide movement joint. The backer rod serves two…

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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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Caulk Ceramic and Porcelain Tile Expert Answers Movement Joints Sealant Caulk

Should I use 100% Silicone Caulk Sealant or the Sanded Caulk Sealant?

ANSWER - The tile and stone industry standards require that an ASTM C920 sealant (caulk) is used for movement joints and transition joints between changing planes or materials.  ASTM C920 are normally 100% silicone or…

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