How I'm replacing the old broken grout between my flagstones
My favorite project lately is replacing the old broken grout between my flagstones in my backyard, and replacing it with a flexible adhesive. I'm enjoying doing it, and it may or may not be appropriate for you. I'll see if I can explain. I'm in the Phoenix, Arizona area, where flagstone can be laid directly on the ground. That is, it never gets cold enough for frost heave, so all I did was to put a base of sand down and fiddle with the stones until they sat properly, with no teeter-totter. I started doing this many years ago, and once the stones were all in and stable I added some grout between them which I poured in and wetted to set. And then over the years as the grout cracked I touched it up, because the stones do move, at least a little bit - enough to crack the grout, which is just kinda like concrete. But this year I did something different, putting in something that was flexible. It comes in a tube, and you have to use a caulking gun to apply it. Believe it or not,