Rendering

Rendering is a process when exterior cladding is applied on external walls to give some sort of finish. At RKND we do all sorts of different renderings, which helps to:

• Protect the wall from weathering effects and rainwater penetration.
• Improve fire rating qualities.
• Improve the external appearance of a property. There’s no denying that applying a render system to an old, tired-looking building will transform its appearance – making it look modern and more visually appealing.
• Increase the thermal efficiency of walls.

• Cement renders are also known as standard or traditional render. To apply this type of render, it must be mixed on-site. Cement renders are applied in multiple layers. First few coats (called scratch layers) are applied while they are still wet, so the next layers could bind more easily to them. Top coat is usually thinner than the other coats and it’s ready to be painted.
• Polymer renders are sold pre-mixed with lime or cement as a base. This render has polymers or other plastic-based particles added to make the render more plastic and more resistible to cracks. Polymer renders already come in a variety of colours, so finished walls do not require painting.
• Acrylic renders are usually applied as a thin finish layer. When the acrylic layer is applied, it enhances and seals the appearance of the underlying coat. Acrylic renders comes with fibres added to the mixture to make it more resistant to cracks, which helps to achieve the long-lasting finish. This render comes in a variety of colours, which with the help of application method can create an attractive finish.
• Silicone renders are known for their hydrophobic and self-cleaning properties. These renders are very flexible which makes them very resistant to cracking. Silicone renders are highly durable and breathable, which helps to expand the lifetime of this coating.
• Monocouche renders are very new in the world of rendering. This rendering can be done in one 15mm thick layer, which makes it one of the fastest rendering types. Monocouche renders can come premixed with additives, which can make it more flexible and/or self-cleaning. Painting the wall can be avoided, because of a variety of colours.
• Lime render is the traditional method for rendering in the UK. Lime-based renders are harder to apply, therefore it’s mostly used in renovation and/or conservation projects. Lime render is breathable, which helps to avoid mould and it is flexible than cement, which helps to avoid cracks.
• Insulated renders does not mean insulation within the render itself, it is simply another way of saying a layer of insulation buried beneath the render. In the industry, the more commonly used term for this is external wall insulation, solid wall insulation.