External rendering is the process of applying a protective layer to the outside of brickwork and other masonry. External render can also be applied to concrete blocks, stone, wood and metal walls.
The first step in external rendering is to apply a rough coat of mortar, which provides a key for the final render. The key coat should be about 3mm thick and contain sand, cement and water. A hard-setting mortar is often used to create a strong bond between the wall and the render. This can be done by hand or machine (depending on size).
The final coat of render will usually consist of lime-based render mixed with sand or cement. If a smooth finish is required then some form of aggregate (such as crushed stone) may be added to provide texture. The colour of external render will vary depending on what colour you want your home to look like; most people choose red, yellow or white because these colours are warm and inviting.
External rendering is the process of applying an external insulating and weatherproofing finish to an existing building.
Exterior render can be applied to new and old buildings alike, as it provides a durable protective layer for walls and other external surfaces. External render is typically applied as a finish coat over brick, block or stone to protect the surface from weathering.
External rendering can also be used to improve the appearance of buildings. For example, it can be used to hide features such as cavity walls or ventilation stacks that are considered unsightly.
External render may also be used as part of a larger renovation project such as partial replacement of windows or doors.
Exterior render can be made from several different materials including cement-based renders (lime, gypsum), cementitious paints and silicate paints (silicone).
External rendering is the process of applying a protective coat of paint to the external walls of a building. The purpose of this process is to protect the building from weathering and also provide it with an attractive appearance.
External rendering is also known as weather proofing or hard surfacing. The process involves applying a layer of render onto existing brickwork, which can be in poor condition or on new build properties when the brickwork is left exposed after construction work has been completed.
The render is typically made from cement, sand and water, and then coloured with either lime or cement based paints. The finished product should look similar to cement tiles but can be made in a variety of colours including red, yellow and white as well as black. External rendering offers several benefits over traditional bricks including:
Protection against weathering
External rendering helps protect your home against rain damage by creating an impenetrable barrier between water and the surface of your home’s walls. This prevents moisture from seeping into your property through gaps in mortar joints or cracks within brickwork itself. The render also acts as a buffer between rainwater and any cracks in plaster on interior walls, which could otherwise lead to leaks in your property’s roof cavity. Contact us for more information on Rendco External Rendering.