When adding a new render to a wall it is important to make sure that it is the same type of render as the render previously used. This is not always essential but is very important for older properties, especially when the owner wants to maintain the look of the property or the building is located in a world heritage site or conservation area. It is important to find a rendering company with experience in dealing with traditional rendering methods if you have a period property. Many years ago ingredients such as goat hair, eggs, lime, beer, manure and even urine were used as part of the render mix. After determining the type of render used before the rendering company has to remove any damaged or weak render, and take the wall back to a solid base surface consisting of brickwork and solid render. After that two coats of render are applied to the wall. Firstly a scratch coat to seal the surface of the wall and after that a topcoat to give a smooth clean finish. After that the walls can be painted though it is also possible to incorporate the desired colour into the final coat of render. This will make the colour last for longer.