Hairline Crack in Piece of Flagstone used for Patio
(Fort Worth, Texas, USA)
We just had a flagstone patio installed. I noticed that one of the pieces has a hairline crack in it. The landscaper doing the install said that this is not a problem, but I am concerned that the crack may get worse in the winter with moisture getting in there and freezing/thawing. Should I insist that this piece be replaced, or is it natural for flagstone to be installed with a hairline crack on the surface?