Key Learning outcomes
- Introducing the importance of appropriate render choice.
- Identyfying the factors which impact the buildings façades in the city center or on the city outskirts.
- Understanding the correlation between wall structure and possible wall finishes.
- Recognizing the difference between old and newly constructed buildings in terms of render use.
- Matching the render colour to the particular building.
Introduction
Let’s be honest – there is no perfect render. A feature which forms an advantage of one render, in a different situation may be a serious drawback.
In order to select an appropriate render type one should consider numerous data. As long as there are no remarks on the use of a definite render type, the client can use any product they can afford. The most advanced thin-coat renders currently available on the market are the silicone and silicate ones. These products and their hybrids are most often 'general-use' and will do good in almost any conditions. Naturally, there are some limits which cannot be crossed even with the most advanced materials. The best example is the external insulation with mineral wool panels, where the rendering coat must be characterized by high vapour permeability similar to the whole partition and where only the mineral or silicone-silicate renders can be used. But, as long as the investor treats the appropriate cost level as the main selection factor, the supplier should select the materials providing the best solution for the best price. Please note that it is not advised, on the basis they meet the financial expectations of the buyer, to choose technologically improper products.