Cement rendering includes using cement render on an inner or exterior wall. It provides both decorative and practical advantages. The many textures and colours available in renders can help improve the appearance of the house and give it a new look. And the cement render also acts as an extra protective layer shielding the external walls from harsh weather and insulating the home leading to better energy efficiency.

You have to choose a blend of concrete blender that is suited to the surface of the foundation. There are many cement renders in the market so make sure that you research the product before purchasing. When you are rendering, the first thing you should do is make sure that the surface you are working on is free from any dust, grease, dirt, paint etc. Check for any imperfections in the wall so that you can repair it before rendering. The wall behind should be in a good condition before you start. If there are smooth surfaces like concrete, it is best to use a dash coat that has a blend of water and cement before you apply the render. By doing this, you are ensuring the render has a good grip on the surface. The dash coat should dry for about a day before you start with the render. You have to decide which render to go with in the beginning. You have to measure the right amounts when it comes to blending the renders. Use a hard level surface to blend the renders. When stirring, make sure you stir enough render that can be used in about half an hour.

You will have to keep blending the dry ingredients until you get a uniform colour. Add water gradually so that you don’t end up with too much water. If you use too much water, you will need to start the blending process again. The final mixed render should be soft and it should stay stuck to the float even when it is turned upside down. It can be hard to apply it on the wall while maintaining a uniform thickness. To give you a guide when working, you can use nail a wooden board of the required thickeness to the wall so that you don’t go beyond it. This way, you can easily maintain uniform thickness. Once you have the right thickness, you can use a metal leveller to trowel the surface smooth. You can apply more than one layer. But if you are doing this, the first layer should dry up in about a week. And to ensure that the second layer has a good grip on the surface, the first layer should be scoured.

There are different finishing types you can use for the final appearance. For a patterned effect, you can rub a damp hessian ball into the surface. You can also sponge or mop the surface. For a rough finish, you can flick the last coat of render onto the surface. Or you can use a wooden trowel to skim the top of the final surface to obtain a trowel finish. You can also get a more textured finish by adding coarser aggregate to the mixture used for the last coat.

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