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Light Weight Thin Coat Renders
Exterior wall coatings or renders are designed to enhance the look of your home. Some exterior wall renders are specially made to refurbish and protect and insulate your home Traditionally renders were made of lime or cement although cement renders are liable to cracking and may need replacing sooner than most of the more modern rendering systems. Renders usually need two or three applications of coat to give the right thickness and to help protect a building from bad weather and provide some level of added insulation.
Modern Renders
More modern renders such as polymer or acrylic may require only a single coat and some of these can even be sprayed onto the exterior walls of your home and may be referred to as lightweight thin coat renders. The type of render that you choose will depend very much on the type of home you have, not just its general style but also its substrata. Not all renders are suited to every building. Single coat renders, which some polymer renders are and which are also referred to as monocouche renders because they don’t need a base coat. Traditional lime and concrete renders require a base coat and sometimes even a third coat how well these renders perform and how long they last depends on the quality and quantity of sand used in the render mix. As any professional renderer will tell you, the quality of a render depends on getting the mix right, if you get it wrong you could be in for an expensive and time consuming mistake.
Polymer Renders
Lightweight thin coat renders is a particular form of polymer rendering that needs to be coated or sealed once it is cured. Unlike some polymer mixes, which only require one coat, the lightweight thin coat render is applied as two coats, the first of which has a nylon reinforced mesh incorporated into the mix and is usually between 9mm and 12mm thick. The lightweight thin coat render is often used as an alternative to the more traditional cement render. Besides being more durable and lighter than a cement render, the lightweight thin coat renders generally perform better and are less susceptible to shrinking and to cracking and peeling. As with many other renders, lightweight thin coat renders are generally applied to buildings with particular substrata, including breeze blocks, concrete block, thermalite block, insulation slabs or brick. This lightweight polymer render is easy to apply and the application does not take long, which means you save on building costs and scaffold hire.
Matching the Render to the Substrata
It is crucial that you ensure your render is matched to the right substrata if you want it to take and give you years of service and protection. Failed renders will crack and peel and as pieces come away from the building beneath may drop off and become a hazard. Renders that are put onto the wrong substrata can fail in as little as eighteen months, which is an incredible waste of money. Lightweight thin coat renders will dry quicker than traditional renders, which means less professional time is needed.
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