Porcelain tile cracked from cold
We have a 2-year-old home in Northern Michigan with a screened porch where we installed porcelain tile. We love the tile flooring. First winter in the house, no problem. But this past winter (probably colder overall) some minor cracking occurred. It’s near the edges of the porch where snow or moisture could have acculumulated, although we have deep eaves and are in the woods so very little snow blows in. The grout separated away from the tile, and there are cracks in 3 tiles, all of which are irregular shapes to go around posts and such.
What’s the best way to go about repair?
Can we wait on repair as long as we keep moisture off the cracks?($$)
Is there a certain grout that might be best?
I have a feeling that the grout is what failed, allowing moisture under the tile, which caused the cracking. Can anyone confirm that?
Since only the irregularly shaped tiles cracked, should we cut all repair tiles in rectangular shapes to minimize this risk?
Thanks in advance.