Mortar or No Mortar? Brick Patio Problems
Help! I'm totally confused about how to install a brick patio.
We're trying to lay brick pavers over an existing concrete patio. Our handyman has told us that we do not need to "glue" the bricks to the concrete, except for the border. He said that we only need to sweep polymeric sand into the joints to glue the bricks to each other.
Well, I'm a bit skeptical about his advice. We laid the bricks out and tried to sweep the sand in. No matter how much sand we dump in, the joints are not filling up with sand. I presume this is because there is no mortar between the bricks and the concrete, and the sand is flowing into the space. Also, while sweeping, I could feel certain bricks are loose and shifting. Hmmm.
I've looked at many how-to's on the web. They only confuse me. Some say you need to use actual mortar. Some say you don't need anything. Others say you need to set the bricks in sand. What kind of sand? Is this the polymeric sand or just normal sand?