The frequency of block paver cleaning will largely depend on the environment in which it is laid. How Often Should I Clean My Block Paving? In turn, this will cause the driveway to move and potentially sink, particularly if water becomes lodged underneath. Repeated use of this cleaning technique will dislodge the sand and without pulling up the entire driveway, you won’t ever get that structural integrity back. A lot of people believe that using a pressure washer to remove dirt and weeds from in between the paving blocks is a good idea, but at the same time, it’ll remove the sand. The problem with using a pressure washer is that you may, intentionally or unintentionally blast this sand away. If it is removed, then the driveway will become much weaker and won’t hold in position. This is there to provide strength and structure to the driveway. You will also need to think about the jointing sand that lies between the blocks. For this reason, we would suggest only using pressure washing at its gentlest and for rinsing as opposed to stain removal and blasting. However, it is this type of cleaning that is more likely to cause damage. This type of cleaning can and will blast out dirt from between the stones and will remove stubborn surface stains. Secondly, you must think about the way in which you use your pressure washer on the surface of the pavers. There are risks involved in anything and ensuring that you don’t pressure wash too often is one of the first and most important things to consider, as we have already discussed. But don’t let these things deter you provided that you are cautious and take a responsible approach to cleaning, your driveway shouldn’t suffer – nor should your bank account! Having read through some of the risks of pressure washing your block paved driveway, you might be instantly put off the idea. Important Things To Consider When Using A Pressure Washer To Clean Block Paving Typically, this happens on newer block paving so it may be best to avoid using this type of cleaning until the driveway has had time to naturally disperse any salts. This is where white marks appear on the surface of the driveway owing to salts being released from the stone during cleaning. In addition to damaging the block paving, there is also a chance of a process known as efflorescence occurring. There are other methods of cleaning that you can use that will deliver excellent results and don’t come with the risk of damaging your property. More often than not, this happens if you use a pressure washer on your block paving too frequently.įor this reason, we would always suggest that you err on the side of caution and only pressure wash your block paving when it is absolutely necessary. Another serious problem that can occur is when water becomes lodged underneath the blocks which in turn, will disrupt the driveway bed causing it to shift. However, since the stones used on your block paved driveway are delicate, this high pressure could damage them or cause them to crack, if you don’t do the job properly. This need means that they must fire extremely high pressure jets of water to blast away things like oil stains and ingrained dirt. Pressure washers are amazingly powerful tools that are designed to remove even the most stubborn marks and stains from outdoor surfaces.
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