Pavers Over Crushed Rocks, and Joints are Filled With Sand

By on October 1, 2015

Q.I tore out and replaced the concrete on my patio and sidewalk with pavers over crushed rock. Joints are filled with sand. Should I use a sealer on this, and if so how often? (Bob, Los Altos Hills CA)

A. No – crushed rock covered with pavers is not a solid mass and therefore does not require sealing. Sealers are used to keep a surface clean and to shed water. With a paver system water is designed to pass through so a sealer is not needed. For the cleaning part, simply use a degreaser, such as an automotive type degreaser, for your next cleaning project. Pressure washing is still an option even though the joints are filled with soft material. Just be careful.

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