How to Re-Sand Block Paving: A Step-by-Step Guide

Maintaining your block paving is essential to preserve its appearance and structural integrity. Over time, the jointing sand between the pavers can erode due to weathering, cleaning, or general wear and tear. Re-sanding these joints is a straightforward process that helps prevent weed growth, enhances stability, and prolongs the lifespan of your driveway or patio.

Why Re-Sanding Is Important

 

The sand between block paving serves several critical functions:

  • Stability: It locks the pavers in place, distributing loads evenly and preventing movement.
  • Weed Prevention: Properly filled joints deter weed seeds from settling and germinating.
  • Water Drainage: Sand-filled joints facilitate effective surface water drainage, reducing the risk of pooling.

When to Re-Sand Your Block Paving

 

It's advisable to inspect your paving regularly and re-sand when you notice:

  • Visible gaps between pavers.
  • Loose or wobbly pavers.
  • Increased weed growth in joints.
  • After cleaning, especially if pressure washing was used.

Materials Needed

 

  • Kiln-dried sand: This type of sand is dry and fine, making it ideal for filling joints effectively.
  • Soft-bristled broom: To sweep the sand into the joints.
  • Plate compactor (optional): For larger areas, to ensure sand settles well into joints.

Step-by-Step Guide to Re-Sanding

 

  1. Clean the Surface - Remove any debris, dirt, or weeds from the paving. For thorough cleaning, consider using a pressure washer, but be cautious as high-pressure jets can dislodge existing jointing sand.
  2. Allow to Dry - Ensure the paving is completely dry before re-sanding. Moisture can cause the sand to clump and prevent it from filling the joints properly.
  3. Apply Kiln-Dried Sand - Evenly spread the kiln-dried sand over the surface. Using a soft-bristled broom, sweep the sand into the joints, ensuring they are fully filled.
  4. Compact the Sand - For small areas, simply walking over the paving may suffice. For larger areas, use a plate compactor to vibrate the sand into the joints. After compacting, add more sand if necessary and repeat the process until all joints are filled.
  5. Clean Excess Sand - Once the joints are filled and compacted, sweep off any surplus sand to leave the surface clean.

Expert Tips

  • Choose the Right Sand: Always use kiln-dried sand, as its fine, dry particles fill joints more effectively than damp or coarse sand.
  • Regular Maintenance: Periodically check your paving and top up jointing sand as needed to maintain stability and appearance.
  • Avoid Wet Conditions: Re-sanding should be done in dry weather to prevent the sand from clumping and ensure it fills joints properly.

Conclusion

 

Re-sanding your block paving is a simple yet vital maintenance task that enhances the durability and aesthetics of your outdoor spaces. By following this guide, you can ensure your paving remains stable, attractive, and free from weeds for years to come.

For more detailed guides on maintaining and enhancing your outdoor spaces, visit our How-To Guides.