Though the average lifespan of a building's render is 30 years, external renders, like many other types of finishing materials, have a certain lifespan beyond which they become useless. Some contemporary sculptures constructed of acrylic or plastic, for instance, have a lifespan of 20 to 40 years. Over half a century passes on average between the time a house needs substantial improvements and when those renovations are actually done. Nonetheless, let's analyze the parts to learn how long the external rendering takes. For that you need to choose the best plasterer Sydney.