Are you thinking about painting Pebbledash? Are you wondering if its DIY-able, or how difficult it is to paint pebbledash or how to prepare the walls for painting? Please let us help you with your pebble dash painting project
We often get asked if it is possible to paint pebbledash or roughcast. Or will painting pebbledash wall make the walls smoother? Depending on the size of the aggregate originally used (some aggregate can be the size of marbles) painting pebbledash can be hard work. Getting the paint into the crevices and little holes of the pebbledash can be very time consuming and you may go through several heavy nap rollers, it will certainly be a good arm and shoulder workout!
So how do you paint pebbledash to a good standard?
If the backing render coats are solid, pebbledash can be painted and refurbished with a good quality masonry coating. This usually involves patch repairing the render. Basically, the pebbledash backing render coats are checked out for soundness and any loose render is removed and patch repaired. When you patch the dash render it’s important to finish the repaired areas of the dash with a similar finish ensuring that the repairs are textured to blend into the surrounding finish. Otherwise, when you come to painting the pebble dash of roughcast you’ll end up with visible patches of smoother areas, what we describe as repair islands that will stand out. You can create a similar texture by either casting similarly sized aggregate Into the render or you can texture the repairs with a brush when the render coats have gone a bit stiffer. You will also have to attend to making good cracks & washing down the surface before its painted.
If the pebbledash is very rough it can be raked back, the pebble that is, a shovel turned the other way and some elbow grease works well, basically, the outer layer of pebbles are raked off, this only works with a dry dash finish. This will provide a less undulated textured surface
The use of a power wash will be helpful and a surface disinfectant such as sodium hypochlorite to kill any algae, moss lichen etc. A sterile surface is essential to aid adhesion and stop the paint going a funny colour, (some lichen can make the paint or render change in colour.)
Sometimes the surface may need a slurry or “bagging coat” applying which can be cement or lime base. This coat is designed to level out the surface a little and weld the pebbles onto the wall permanently. The surface can then be painted or coated in different finishes such as limewash, silicate or acrylic paints. A primer coat may also be needed to stabilise the surface. Then its usually two coats of paint and the jobs done. If this kind of work is undertaken you should get 5-10 years before it will need doing again. If it’s not done properly it may only last a year or two.
When it comes to painting pebbledash There is an easier way, one that’s guaranteed to last at least fifteen years and look great, get the professionals in?
All4Walls can specify the correct preparatory work, the best coating, which may include high build finishes to smooth the surface out a little and hide imperfections. Through our qualified installer workforce, we can provide all this from start to finish nationwide
If the pebbledash has many defects or is mostly loose, causing damp or has broken down and delaminated, or if it looks out of place It may be best to remove it all, we can provide all the options.
If you need any tips for the possibility of rendering over pebbledash, roughcast or other render finishes, follow this link: