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Brick is very low maintenance, but age and weather still take their toll. As a result, brick requires occasional repointing—removing and replacing deteriorated mortar. Fortunately, this is a task that a handy homeowner can tackle.
Listen to BOB VILA ON REPOINTING BRICK or read the text below:
Working in small sections, use a cold chisel, a handheld grout saw, or a joint raker to tap out the damaged mortar without harming the brick. Remove the mortar to a depth of at least half an inch, then clean up the dust with a broom, brush, or hose. (Be sure to wear a respirator.)
Soak the brick and let it dry overnight. If your house is less than 50 years old, you can probably repoint using standard Portland cement mortar; older brick may require a lime-and-sand mix. Consult a mason if you’re uncertain about the age of your bricks.
Mix the mortar in small batches. Lightly spritz the bricks, pick up some mortar on a large trowel, and work small amounts into the joints using a pointing trowel. Even out the mortar with the flat edge of the trowel and scrape off any mortar you get on the face of the bricks. After an hour or so, use a sturdy wire brush to carefully clean mortar off the brick face. Mist the wall daily for the next few days to help the mortar dry without cracking.
Bob Vila Radio is a newly launched daily radio spot carried on more than 75 stations around the country (and growing). You can get your daily dose here, by listening to—or reading—Bob’s 60-second home improvement radio tip of the day.