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Renders and Wall Repairs
Whether you have large cracks or small ones in your external walls it is a good idea to plaster them over before you apply a render. Rendering and wall repairs should go together because some renders adhere much better to a surface there are very small or better still no cracks. Surface cracks aren’t too bad but if you have a crack that threatens to be more than just a surface blemish it is a good idea to plaster over them before you do anything else. If you are not confident of your own skills then you may need to get a professional in to undertake the rendering and wall repairs for you. Repairs are often needed when you are refurbishing a property and you may want to think about one of the more contemporary renders with extra insulating properties.
Plastering Over the Cracks
The best way to repair cracks in a wall is to plaster over them before you do anything else, small cracks soon become bigger ones if they are left unattended. If you plan on adding a render to your exterior walls then it is best to deal with anything other the smallest surface cracks first, rendering and wall repairs go together. The most important thing to remember with plastering is that you should clean up any spills immediately because dried plaster is a real pain to get off. There are plenty of do it yourself guides on plastering and you can get some ready mixes for exterior walls then all you need us a plastering board, plasterer’s trowel, some thin batons and a hammer and nails. Nail the batons around the crack as these act as a guide for the plastering level and smooth as you go. If the cracks in the wall really are large then you may want to get them done by a professional plaster as both rendering and wall repairs require a certain level of skill if you want them done properly.
Repairing Broken Wall Ties
If the wall ties in your brickwork are broken these will need to be repaired. Taking out the broken ties and putting in the new ones will leave tiny holes in the brickwork and you may want to get this repointed before you apply render over the substrata. Once you have had any wall repairs completed then you will need to establish which type of rendering is best suited to your substrata.
Rendering
Traditional renders are usually made from lime or lime and cement. Lime renders tend to suit most substrata and don’t always need an expert to apply them. If you have some do it yourself skills and you want to save money on rendering and wall repairs then the best option is to undertake these tasks yourself. Lime renders will help to reduce any damp in your walls as the render allows the substrata to breathe and expell the condensation that can cause problems. A traditional lime render will not only improve the appearance of your exterior walls it will give them added protection from harsh weather conditions.
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