16 Apr Install pavers over concrete for a easy patio makeover
Laying pavers over concrete slabs doesn’t require any excavation. So if you already have a concrete patio or sidewalk, you can update the space without having to hire an entire construction crew. Simply change the look of your walkway or backyard by laying brick pavers over the old surface.
Laying bricks over an existing surface has some advantages.
Since there is an existing base, there’s no need to create a level surface, you have one ready and waiting.
Using this approach also helps you avoid digging up your old concrete and hauling it away. Once your pavers are in place, the best advantage is no power washing each spring!
With concrete that’s smooth and even, start by choosing a clay paver and the pattern that you will use. Keep in mind that there are “thinner” pavers (1 3/8”) for these applications and that some patterns like herringbone will require more cuts than others.
Next lay a “soldier course” of bricks, perpendicular to the edge of the concrete to form the outside “frame” of your project. The secret here is to use four dots of masonry adhesive on each brick, each about the size of a penny, which allows rainwater to pass underneath.
On the inside of the soldier course, cut pieces of roofing felt to put a single layer inside the “frame” covering the concrete, don’t overlap the felt edges, and then lay a second layer of felt, perpendicular over the top of the first layer.
Then, starting at one corner, begin laying the brick in place, leaving a 1/8” gap between the pavers for sand. Finish by sweeping concrete sand in between the joints until they are full.