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best caulk/grout for slate poarch

Is caulk or cement best for slate paorch caulk/grout?

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Posted 2013-07-29T01:34:45+0000  by billboy billboy
 

Hello there billboy,

 

Thank you for joining our community!~

 

I believe there may be some confusion abound on exactly what caulking and grout are used for, so let's set the record straight to answer your question here.

 

Grout is used between two like surfaces, most notably in tile. It acts as a bonding agent and helps fill voids in the joints between your tile. This cures just as a cement would and most styles you will find do have latex agents active in them to give them a bit of flex, but it will dry very hard.

 

Caulk is a more pliable agent and is commonly used between two dissimilar surfaces such as tile and tub, but can also be used in corners where tiles meet. It's main use is as a water-resistant barrier to help ensure that the subfloor does not come into contact with moisture. This is far more flexible than grout would be and is not suitable for use between tiles.

 

Hopefully that helps clear it up and you can understand better now what goes where : )


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Posted 2013-08-02T18:17:16+0000  by Jay_HD_CHI
Hello billboy!

Grout and mortar are commonly used with natural stone surfaces because these surfaces expand and contract about the same.

Between the porch and building, where siding meets flooring, expansion rates are different.

These more flexible joints require silicone rubber caulk that expands and contracts easier than grout and mortar products.
Posted 2014-12-04T15:49:47+0000  by Pat_HD_ATL
 
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