Expert Painters

Coloured Render or Painted Render? How to Choose

Soft neutral exterior paint finish by Melbourne Paint Pros
09 Nov

There are two ways to get colour onto a rendered wall. The pigment can be mixed through the render itself, or the render can be left grey and painted. They look similar on handover and behave completely differently over the next twenty years.

Most people are only offered one of them, usually whichever the trade in front of them prefers.

Through-coloured render

The colour is in the material. An acrylic texture coat or coloured topcoat goes on over the base render and the pigment runs all the way through that layer.

The advantage is what happens when it gets damaged. A scratch, a knock from a wheelie bin, a chip at a corner: the colour underneath is the same colour, so it does not announce itself the way a chip through paint does, exposing grey render underneath.

The trade-offs:

  • The colour range is narrower than paint, and it is set by the manufacturer’s system
  • Batch variation is real. A patch mixed later will rarely match exactly
  • Changing the colour later means painting it, which puts you on the paint cycle anyway
  • Higher cost up front

Painted render

The render goes on grey and is coated like any other exterior surface.

  • Any colour you like, including colours no render system offers
  • Straightforward to change in ten years when tastes move on
  • Repairs and patches blend because you repaint to a corner
  • Lower up-front cost
  • And it needs recoating, realistically every eight to twelve years depending on exposure

This is what most Melbourne houses have, and for most houses it is the sensible answer.

The question that actually decides it

Not cost. It is whether you expect to change the colour.

If this is a long-term family home and you have chosen a colour you will still like in fifteen years, through-coloured render earns its premium: fewer maintenance cycles and damage that does not show.

If it is an investment property, a house you expect to sell, or you are at all unsure about the colour, paint it. Being locked into a render colour you no longer like is an expensive position, because the only way out is to paint it and then you are maintaining a painted surface that cost you extra to install.

Texture is a separate decision

Coloured render systems come with a texture as part of the product: fine sand, medium, coarse, roll-on or trowelled. The texture and the colour arrive together.

With painted render you take whatever texture the base render was finished to, and paint sits on top of it. That gives you less control over the final texture but more control over colour. Worth looking at samples of both before deciding, because texture changes how a colour reads far more than people expect. A mid-grey on a coarse texture looks several shades darker than the same grey on a smooth finish.

Both of them crack

Neither option prevents cracking, because cracking comes from the substrate and the ground underneath, not the finish.

The difference is in the repair. A crack in painted render is cut out, filled, textured and the elevation repainted, and done well it disappears. A crack in through-coloured render is repaired with material that will not quite match, so the repair tends to stay visible unless the whole elevation is recoated.

On Melbourne’s reactive clay soils this matters. Our guide to render cracks covers which ones are cosmetic and which need an engineer before anyone coats anything.

Dark colours have the same limits either way

If you are considering a deep charcoal, the heat and fade issues apply to coloured render exactly as they apply to paint, and some lightweight and foam-backed render systems specify a minimum light reflectance value that rules out very dark finishes entirely.

That is a system specification question, not a preference, and getting it wrong can void a warranty. See our notes on dark exterior colours.

Can you paint over coloured render?

Yes. Once it has weathered and been properly cleaned, coloured render takes paint like any other masonry surface. It needs a thorough wash to remove chalk and dirt, and any cracking dealt with first.

The only thing worth saying is that you give up the reason you paid for it. If the render is sound and you simply want a different colour, painting is the practical route; just go in knowing the chip-resistance benefit is gone.

Maintenance, whichever you choose

Neither finish is maintenance free, and the marketing sometimes implies otherwise.

  • Both collect dirt, mould and lichen, particularly on south-facing and shaded walls
  • Both need an occasional gentle wash, which does more for appearance than anything else
  • Strong colours fade in both systems, because pigments fade regardless of what they are suspended in
  • Both show salt deposits if moisture is moving through the wall. See efflorescence

If the render itself has failed

Tap the wall. If it sounds hollow, the render has debonded from the masonry and no finish will save it. That section has to come off and be re-rendered before any colour decision matters. Our guide to rendering costs covers replacement, and for brick that is better left breathable, limewash and mineral paint is the other direction entirely.

What we do

  • Honest comparison of coloured render and painted render for your specific house and how long you plan to stay
  • Render repair and replacement before any finish goes on
  • Painting over existing coloured render where a colour change is wanted
  • Large samples on the wall, in both texture and colour, before anything is ordered
  • Checking system specifications where a dark colour is involved

We are based in Richmond and work across Melbourne, the bayside suburbs and coastal Victoria.

Call 0404 330 332. If you are mid-build and the renderer has asked which you want, that is exactly the right time to ring.

📍 Our Service Areas Across Melbourne, the Mornington Peninsula, Surf Coast & Phillip Island

Melbourne & Bayside

Phillip Island & Bass Coast

Surf Coast & Bellarine Peninsula

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