How To Stop Sand Washing Out Of Block Paving

  • Find out how to seal your paving sand.
  • Where you should and shouldn’t use paving sand.
sweeping sand out of pavement

It’s time to protect your paving sand. Without proper measures, paving sand can be washed away by your cleaning methods or by harsh weather.

Why you should secure your paving sand

Without securing your paving sand, the sand can easily get washed out over time.

This can happen because of several factors, including the sand being exposed to the elements or improper washing techniques. For example – we wouldn’t suggest you use a power washer anywhere near sand that hasn’t been sealed down.

Compacted sand has an incredibly important job. Its role is to keep your paving slabs locked together without you needing to use concrete or any other methods to keep the joints of the pavers covered.

In addition, paving sand will also prevent weeds from sprouting up between your paving slabs because no water will be able to get through the cracks and cause garden pest growth.

The sand that you use to secure your pavers stops them from shifting against each other. Sand becomes part of the structure of the paved area of your garden.

sweeping sand out of block pavement
Brushing sand into the joints of pavers.

How to secure paving sand

If you need to replace your paving slab sand, simply pour more joint sand over the pavers and brush it into place across the joints of your pavers with a stiff brush.

To secure any new or old paving sand, you should seal the paver surface. A paver sealer is essentially a type of glue that joins together the pieces of sand and stops the particles from being easily washed away during washing or bad weather.

This paver sealer will eventually wear off, but it does typically take a few years to do so. At that point, you should clean the surface of your paved area and seal it all down again.

In addition to keeping the sand in place, the sealant will also offer more resistance against weeds and moss that want to grow between your paving slabs.

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Paver sealer also protects against stains, oil, and rust. Don’t just seal the joints, use the paver sealer on the entire area of your garden that you’ve paved.

Where to use paving sand

It’s best to use paving sand in the joints between your paving slabs that are resting on a flat (or as flat as possible) surface. Sand is less likely to fall out or be washed away when it’s contained in a space that is flat against the ground.

It’s much more difficult for rain or harsh wind to push at the sand when it’s flat like that. However, if you were to use paver sand on a paved area that was angled, you might find that you lose more sand than you mean to.

You can still use paving sand on non-flat areas, but we would recommend sealing that paved area as well as you can.

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