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 ...

Q: Mortar is falling out of the inside of the granite foundation in my 137-year-old house, and wind and rain are coming through. What can I do to stop it? A: When mortar comes out, put new in. It's ...

Dear James: We have a brick house and the mortar between the bricks has fallen out in spots. It looks terrible. What is the best method to repair this and how can I get new mortar to look like the old ...

Dear Tim: I have a lovely brick patio that has mortar between the brick. After pressure-washing it this past weekend, I noticed several locations where the mortar has disintegrated. Most of the mortar ...

Question: It appears I wasted some money five years ago. I had my brick building repointed with new mortar, and it has deteriorated quickly. Do you have any idea what caused it to happen? The building ...