Can You Render Over Pebble Dash?

By Jamie Orr
Date 20/03/2021
can you render over pebble dash?

Covering pebble dash with render seems like a logical solution if you want a modern, uniform surface on the outside of your walls. But can you actually render over pebble dash? In short, the answer is that you technically can, but you probably shouldn’t.

In this post, we’ll explain why rendering over pebble dash isn’t recommended – and some of the alternative options for homeowners…

Can you render over pebble dash?

Technically speaking, you can render over the top of pebble dash as long as it isn’t damaged. Many renders will adhere to the surface with the right preparation and they might look great at first.

However, there are a number of reasons why this isn’t recommended:

  1. It could add unnecessary stress to the walls. The extra weight of render over pebble dash could be enough to pull everything off your walls over time. That’s especially unsuitable if you want to cover pebble dash because it’s already cracking.
  2. If the backing render coats are not solid, they could fail. If that happens, whatever is applied to it – including the top coat of render – will come away from the walls.
  3. If the pebble dash is primarily a concrete material (which most are) it will not be breathable. Adding render on top of this could make things worse, leading to damp problems in your walls and inside your property. Some walls are permeable (breathable) by design to let moisture pass through. Using a non-breathable coating on them will trap moisture inside a building, typically without any other source of permanent ventilation.

If a contractor offers to render over your pebble dash without mentioning these issues, they’re probably looking for a quick buck. In other words, they will take your money, cover the pebble dash with render, then leave you to deal with the problems that develop further down the line.

Alternatives to covering pebble dash with render

Don’t worry – this doesn’t mean you’re stuck with the worn or dated pebble dash on your walls. There are a few ways around the pebble dash dilemma, including…

Removing pebble dash

Taking the pebble dash off your walls and starting again might seem like the most obvious solution. However, it’s easier said than done. Pebble dash needs to be hacked off the walls, before applying render. While it will provide a smooth, uniform surface, the job is both time-consuming and expensive.

If you’re removing pebble dash because it’s become cracked or discoloured, be sure to consider a superior product to avoid the same problems happening again. Like pebble dash, some renders can age badly if they’re not flexible and weather-resistant, so it’s important to do your research to find one that will truly solve your issues. Take a look at our blog post on the different types of render to find out more.

Boards and render

Another option to cover pebble dash is by insulating the walls with boards. Render can then be added over the top, which won’t put any stress on the existing pebble dash. This option is less time-consuming, but still reasonably expensive. It also has associated costs like moving downpipes, fascia boards and soffits to accommodate the depth of the boards.


Thankfully, there is an alternative which is both quick and cost-effective. An overspray with SprayCork will provide a more modern, uniform finish. As well as being fast and affordable, it harnesses the natural qualities of cork to keep your walls breathable while adding extra water resistance, heat retention and noise insulation.

Which is best for you?

For convenience

Undoubtedly the most convenient option is to spray over your pebble dash. SprayCork is uniquely suited to this option as it has excellent adhesion to a wide range of surfaces. Additionally, its spray application means it can cover the tricky pebble dash surface with one, continuous coat.

The job can be completed in much less time than it would take to remove pebble dash and reapply render. It’s also much quicker than fitting cladding.

For cost

In terms of long-term value, it’s hard to see past an overspray as the most cost-effective option. Firstly, it’s an affordable solution thanks to the quick application, which minimises labour costs. On top of that, SprayCork comes with a 25-year guarantee, so you know you won’t be paying out for maintenance, repairs and replacements throughout the years.

For appearance

Appearance is a little more subjective, as it’s really down to personal preference. Some people want a completely smooth surface that you can only get with render. In this case, you simply need to find a good quality render that will continue to look the part through the years. Weather-resistance and flexibility are key qualities to look for.

With an overspray you get a stylish mix of modern and traditional. The overspray coats the pebble dash in a colour of your choice, but the original texture of the pebble dash remains on show. It’s ideal if you want to refresh your property while keeping the same character and charm.

can you render over pebble dash?

Photo credit: Andrew Bancroft

Covering your pebble dash

Can you render over pebble dash? Unfortunately, the answer is usually no. But if your home has pebble dash on the outside and you’re looking to cover it, don’t hesitate to get in touch with CorkSol.

We can answer any questions you have about our SprayCork solution, which can be used to coat pebble dash for improved appearance, performance and longevity. Our team can also put you in touch with an approved applicator, who can assess your property and recommend the best solution.

Call us on 01484 442420 or email [email protected].

Share this post

Latest Posts





Subscribe to our newsletter
Sign up for our newsletter to learn more about CorkSol.

"*" indicates required fields

user linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram