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How Long does Rendering Last

Rendering is done to make a property look more attractive and sometimes as a refurbishment of an old property. Many people want to know how long does rendering last and that is a complex question because it all depends on the type of render that you use. Cement renders may need replacing a lot sooner than more modern acrylic renders as the former are more inclined to crack and break off, particularly if bottom layers have been allowed to dry out too much or not allowed to dry sufficiently. Cement renders are more liable to shrinkage than either lime or more modern plastic and acrylic renders. An acrylic render may last for many years as do lime renders. Many old churches and public buildings have lime renders that date back centuries and although some of them might be pretty shabby by now, they have managed to stand the test of time.

Cement Renders

Cement renders, particularly if they have a couple of layers of masonry paint over the top may need to be replaced because it can affect the substrata’s ability to shed moisture. The render will need to be removed and the damp problem can be dealt with by applying either a traditional lime render or one of the more modern specialist applications that are designed to protect against damp. Modern renders are especially useful on older buildings that are not appropriate for cavity wall insulation.

Weathering and Renders

If you live in an area where there is a significant amount of rain and other bad weather conditions some renders will not stand up to it as well as others. One of the reasons that lime has been used to render old cottages and the like is because it can stand up to excessive weather conditions and will protect the substrata underneath. Some silicone renders are ideal for buildings in areas where the weather is bad as they will protect the bricks from the damp. Modern applications tend to last longer and often come with a warranty that guarantees the length of time the render should last. Questions relating to how long does rendering last often fail to take in some of the many problems associated with certain types of rendering and some of the benefits of others.

Cement renders are generally far more brittle than lime renders, which is why they tend not to last as long before they need replacing. Renders always last longer when the application is put onto a clean wall. If you apply renders to a dirty exterior wall then they may not adhere to the surface properly, which means that pieces can crack and break off, shortening the expected life of that render. Most builders will tell you that unless your exterior walls are properly prepared irrespective of what type of render you use, it will not look as good or last as long as it is supposed to. Most people who want to know the answer to how long does rendering last are concerned about the cost as much as anything else. uired on your home.

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