Q. I want to dress up the look of our existing concrete patio. Is it possible to install flagstone or similar material over the concrete? What do you use to adhere the flagstone to the concrete? What ...

Dear James: My small concrete patio has some fine cracks but is overall sound. When I enlarge it with flagstone, can I put flagstone directly over the existing concrete patio? Flagstone gets its name ...

Q. I am installing flagstone and some paving brick on top of a concrete patio. A book I read suggests mixing sand, cement and hydrated lime in different proportions to make the mortar mix. What is ...