Not sure which type of render to use? We’ve provided some helpful information that will put you on the right track to choosing which render is best for your job.
Cement render is the most commonly used form of render, mainly due to its cost effectiveness and simplicity, as its contents only include plasterer’s sand, cement, and lime. The render can be applied to the wall with no edging needed, however, we always like to include a PVC bead for the edging. There are two reasons for this one: 1) it gives the edges a nice crisp clean line, and 2) it prevents the edges of the render from chipping. We recommend everyone use these PVC edges, as the quality in the finish far outweighs cost. If you are on a budget, we would recommend cement render, as you can do a whole house relatively inexpensively. Compared to the acrylic render, if you are renovating for profit, this method will give you the most bang for your buck.
Acrylic render is growing in popularity among some manufacturers, including Dulux Acratex, Rockcote, and Unitex. There are a few main differences between the acrylic render and the cement render, with the main one being the price. Acrylic render can be a lot more expensive due to a few reasons: 1) The acrylic render comes in pre-mixed buckets that can be quite expensive as opposed to the cement render, which only uses sand, cement, and lime. 2) Acrylic render is mostly used as a topcoat, requiring an additional base coat to be applied first. A modified cement render leveling compound will normally be used as a base coat for brick and blockwork to allow for a more even final acrylic render finish. Once applied and left to cure for usually a minimum of three days, you can apply a water-resistant flexible acrylic membrane coating that will seal the render, increase its longevity, and reduce the risk of cracking. Acrylic membrane coating can be applied by a nap roller, texture roller, brush, or spray gun.
Other advantages of the acrylic render include:
- Acrylic render is designed to be applied to most surfaces such as painted masonry, uneven concrete, brick, fibre cement, and plasterboard.
- It also can stretch with changes in temperature, which reduces the risk of cracking, especially if you live in areas where the climate can vary drastically.
- Acrylic render can be tinted to the colour you are going to paint your wall, allowing for one less coat of paint.
- It is extremely flexible. You can just trowel it on, then float it to produce the finished result, and no sponging is needed.
- No mixing is required and it is highly crack resistant.
The technique you choose for applying the cement render will be determined by the finish you want and the tools we use to apply it. Most people go for a textured smooth finish, in which case the render will be applied with a trowel, then floated and/or sponged over with a small amount of water to get the desired smooth finish. One of the other techniques for applying render is bagging, which give you a very rough finish that only requires one coat and uses coarse graded sand.
The team of experts at Perth Bricklaying Company are waiting to answer any questions you may have. We can transform your house or landscaping brickwork in a matter of days. Render, along with paint, are two coatings that will no doubt give you the most value for money when we’re updating your property. If you have any further question, please give us a call and talk to one our experts about getting your rendering project started today.