What Is Joint Sand

Jointing sand is the material that is placed between bricks and stone pavers. … The jointing sand prevents rain and moisture from penetrating the cracks between pieces of brick and causing the soil underneath from washing away causing a shift in position of the bricks.

What is joint sand for?

Joint sand is installed in between each paver stone and is a vital part of the interlocking paver system. Paver joint sand provides stability to keep the stones from shifting under pressure, prevents water from seeping underneath your pavers, helps to prevent weed growth and blocks out pests and insects.

What kind of sand do you use for paver joints?

Polymeric sand is a type of sand that’s often recommended for paver joints. Coated with a water-activated polymer, polymeric sand bonds together when exposed to moisture, keeping the sand from washing away or blowing out of the joints.