What Is Building Rendering?

Exterior building rendering is a plastering finish for external walls that gives a smooth finish and protects brickwork against the elements. Usually, this is built up in two or three coasts making it less likely cracks or erosion will develop over time.

The render on the exterior part of a building is subject to weathering and erosion and if the building render coating is not protected with some form of wall covering, problems will start to appear over time, and if left unchecked, often get worse, and subsequently get more expensive to fix.

• Cement Renders – Are usually applied in several coats, then painted once dry. It is usually the standard option for most buildings.
• Polymer Renders – Are pre-mixed and often pre-coloured.
• Thorough-Coloured Products – The pigment is added in the manufacturing process, the entire render is coloured, not just the outer surface. This means the walls don’t need to be painted as well.
• Lime Renders – Lime is superior to cement as it’s less likely that moisture will be trapped in the brickwork. However, it is more expensive than cement and harder to apply.
• Acrylic Render – It is often used as a top coat over existing finishes. Silicone may be added for longevity.
• Monocouche Render – Only one coat is required. The product is based on cement render and comes ready to be mixed with water, then trowelled or sprayed on. It is expensive to buy, but easy to apply.

• Protect Your Building’s Brickwork Against The Wind And Rain.
• Make The Building More efficient – Around 30% of the energy used to heat a building is lost through its external walls.
• Improve The Look Of The Building
• Help Resolve Building Issues – Such as damp.

You don’t usually need to apply for planning permission for repairs and maintenance to render. But if you live in a sensitive location such as a conservation area or in a listed building, you will need permission before rendering your building. If you want to re-render external walls, we suggest checking your building regulations first.

 

Keeping Your Render Clean

Any organic growth on the building will make your rendered building start to look grubby. Things like moss growth, algae, and atmospheric pollution can cause serious damage to building walls and render if left untreated. This could also lead to expensive structural degradation to your building.