Machine Plastering
A machine is used to mix, and pump bagged material, which is then sprayed. A labourer would traditionally mix copious quantities of material and bring that material to the work area. By using the machine’s mixing technology and mortar hose this eliminates a lot of this demanding work. The machine mixes the material by placing the dry material into a hopper, which is fed by a controlled water flow. Because the water is controlled, this results in exceptional mixes which is crucial when using coloured renders. These types of machines are used for larger areas with thicker coats allowing the operatives to complete work without unsightly joint lines which may be unavoidable if hand applying.
Some render systems like thin coat may not always need the use of a mixing render machine so a projection machine may be used. These machines will spray premixed material; like silicone render to an exceptional finish with no need to finish by hand.
Labour is reduced with the use of machines but still requires the skill and finishing techniques of a skilled worker to provide a quality finished render. Machines require experienced personnel to run them and require servicing and parts regularly.
renders
Renders are an external coating to protect a building’s structure, these renders come in different forms.
Monocouche
This type is a modern through-coloured render which is lightweight, waterproof, and breathable, coming prebagged in many different colours. Monocouche is either installed by hand or machine and can be finished in different textures, including traditional floated, scraped and spray roughcast. Monocouche can be applied in one coat to masonry substrates of many types, although lightweight, high suction and low suction substrates require basecoat render.
Silicone systems
These are coloured thin-coat renders containing silicone resin. They offer greater flexibility than Monocouche and are also breathable.
This system can be applied onto external wall insulation, timber frame buildings and can be used on masonry substrates also.
The system requires a basecoat, primer and the premixed siloxane topcoat which is finished by hand or sprayed.
LIME RENDER
Lime render is a traditional building material that consists of lime, sand, and water. It is a breathable and flexible coating, allowing moisture to evaporate, which can be beneficial for older or historic buildings. Lime render is known for its compatibility with traditional construction methods and its ability to promote a healthy environment by preventing trapped moisture. It may require more maintenance compared to modern renders but appreciated for its historic and sustainable characteristics.
Traditional render
Traditional render refers to the conventional methods of applying external finishes to building surfaces. It typically involves a mix of cement, sand, and sometimes lime, which is applied in layers to create a protective and decorative coating. Traditional renders may require painting for added protection and aesthetics. Newer render technologies, such as Monocouche and silicone renders, offer advantages like quicker application, through-colouring, and improved weather resistance. The choice between traditional and modern renders often depends on specific project requirements and desired outcomes.
Plastering
Plaster skimming is a technique where a thin layer of plaster, typically around 2-3mm thick, is applied to the existing plaster or drywall surface. This process is used to create a smooth and flawless finish on walls or ceilings.
Plaster skimming is done to cover imperfections, such as cracks or uneven surfaces, providing a clean canvas for painting or wallpapering. It requires skill and precision to achieve a seamless result, and it is a widespread practice in both renovation and new construction projects.
Traditional plastering
“Float and set” is a traditional plastering method involving two distinct stages. The first stage, “floating,” involves applying a base or undercoat of plaster to a wall. This coat is initially rough but is smoothed and levelled using straight edges and a float.
The second stage, “setting,” involves applying a skim coat over the floated surface. The float and set process is commonly used to create a solid, even, and aesthetically pleasing surface.
Drylining
Drylining is a construction technique that involves attaching plasterboard to the interior framework and blockwork of a building.
This method creates a smooth and even surface for finishing, and is a process commonly used for interior walls and ceilings. Drylining is faster than traditional plastering, making it a popular choice in modern construction projects.
Drywall joints are either taped and filled, or skim coated. The surface can be painted or covered with wallpaper. Drylining is valued for its efficiency and flexibility in creating interior partitions and finishes.
