A Comprehensive Guide to Render Systems

Rendering refers to the coating that is applied to the exterior walls of a building. A white, chalky coating that bears a smooth texture. The traditional mix of render contained lime water and an aggregate (any coarse building material like sand). There was a time when the conventional method was scrapped for a much scientific approach to rendering with evolving times. The modern scientific renders have bettered the traditional renders as they protected against water (water-resistant) and prevented algae from growing on the applied walls. There are also various options available such as weber ocr, weber cl150, cullamix tyrolean, weber paint, etc.

Here are the types of rendering:

Types of Rendering	Description
Cement Rendering	●       Made by mixing cement, water, sand, or clay. ●       Used to smoothen surfaces.
Acrylic Rendering	●       Acrylic, a form of plastic is mixed with cement rendering. ●       Provides increased flexibility.
Polymer Rendering	●       An adhesive polymer is added to the mix. ●       Suitable for surfaces expected to face a lot of water.
Silicone Rendering	●       Silicone resin is added to the cement render. ●       Provides durability and choice of colour.

Cement Rendering

Cement Rendering requires a mix of sand, cement, water, and clay or lime. Cement render is considered suitable for smoothing out rough surfaces like brick walls or concrete or stone blocks. Painted walls that are prepared accordingly can also be coated with cement render.

Reason to Use Cement Render: Cement Render suits a wide variety of requirements. Irrespective of commercial or residential buildings, cement render imparts a definite look to the premises. The texture can be adjusted to be coarse or smooth by adding sand of desired consistency.

So, contact industry experts, their team of experienced professionals will always help you in carrying out cement rendering in the best possible manner. Cement render even offers the choice of colors. The color can be naturally imparted or brought about using pigments. Apart from aesthetics, cement renders also protect surfaces from being damaged by the sun or rough weather. Cement render is suitable for fences, retaining walls, and both exterior and interior walls.

Acrylic Rendering

An acrylic is a form of plastic. As the name suggests, Acrylic (a way of plastic) is added to a mixture of sand, water, cement, and clay, or lime. It is the same as Cement Render, only with the addition of Acrylic in the mix. This Acrylic helps the render to be flexible. It allows the render to gain any texture as the user may desire, from coarse to smooth. It also provides choices in terms of color.

However, it takes considerable time to dry up and is not breathable due to the Acrylic. Another of the challenges that Acrylic render possesses is the need for it to be repainted. In around ten years, Acrylic renders tend to lose their color and may need recoloring.

Reason to Use Acrylic Render: Acrylic render, despite being very closely related to cement render, offers much more functionality. Due to being flexible, the chances of it cracking reduces considerably. It makes the coating highly durable even against the harshest of weather. It also protects against UV rays, unlike cement render.

It is usually considered more suitable for most kinds of surfaces as it offers fast application as only one coat of the render is enough. It also makes it the most affordable of all the renders.

Polymer Rendering

Polymer Rendering offers a different solution to a wall where neither cement nor Acrylic rendering may prove useful. Walls where both acrylic and cement rendering fail to hang on to, polymer rendering manages to last. It is a cement-based system where polymer containing adhesive is added to enable it to last on surfaces that other renders fail to be effective. It is strong and flexible.

Reasons to Use Polymer Render: Polymer render is especially suitable for surfaces built to face a lot of water. The bathroom walls are particularly relevant to be coated with this render as the preparation to make the render water-proof is negated. If you are looking for a water-proof render and resistant to weather forces, then polymer rendering can be a good option. Places like bathrooms, laundries, kitchens, and even external walls are ideal places for applying this render.

Silicone Rendering

Silicone Render is one of the many renders that the development of scientific renders has provided us. It is a render prepared using the same components and process as cement render but only with silicone (the mineral). Silicone is added in the form of a resin, and once applied, it makes the walls hydrophobic.

Reasons to use Silicone Render: Silicone Render is available in 20 standard colors. Thus, we have a wide variety of choices regarding colors, and the requirement for the user to paint the walls after rendering is eliminated. Furthermore, a silicone render offers excellent flexibility. Greater flexibility ensures more outstanding durability as the chances of cracking during the harshest of weather is reduced.

However, applying the paint during the winters or monsoons may prove problematic as it takes a while to dry. However, if properly used and given enough time to dry, the render should last somewhere around 20 years with the requirement to spray-paint it once in a few years to keep the color clean. 

Every render has its own sets of pros and cons that we have to choose from. One must always consider the circumstances and choose a render that best suits our requirements. The place to apply, the sort of weather our homes are to face, and the weather conditions of our dwelling vicinity bear considerable importance on the choice of render we make.