Why is Rendering a Wall Important?

The facade of a building is its showpiece, but it also has a significant impact on the thermal properties of the house. To put it simply, the way we finish the facade often determines the future heating bills. Therefore, you should not underestimate any issues at this stage of work, especially insulation of the building, including covering the elevation with proper plaster. You can read about the choice of render for the facade and why rendering a wall important in today’s article.

Why is rendering a wall important?

Choosing the right render is not an easy task. Despite appearances, we should guide only by one’s liking; in fact, it is worth putting those liking aside. In case of badly chosen facade render, you will have to reckon with cracks, and in some situations, algae and fungi may appear on the render itself. It is good to understand which render for the facade should be chosen to work well in a given place to avoid such situations.

Here are the basic types of render:

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  • mineral,
  • acrylic,
  • silicone,
  • silicate

Exterior renders are single layers, so laying them will be easier than if they consist of several layers. Companies that provide wall exterior rendering services also use functional machines and equipment to streamline the various operations further.

Choose a render according to your needs

Mineral and silicone renders are slightly less prone to dirt, so they are worth using in urban areas. Acrylic renders are worth using to avoid the quick appearance of damp, moss, and algae on a given facade. That will be the right choice if you live close to forests, meadows, or parks. If you need a solution that is resistant to moisture in the first place, it is worth choosing a silicone-silicate render.

On the other hand, silicate renders, i.e., lime and sand renders, are used in older houses. Silicate allows air to circulate more freely and provides an excellent insulation solution in combination with mineral wool — additional questions concern which renders for the facade is worth using in terms of aesthetics.

What about the texture of the render? There are different varieties – smooth, rough, the famous ‘lamb’ and a few others. The surface itself doesn’t matter in technical terms but has an essential aesthetic dimension.

Sensitive areas and what render to use to complete them

There are places that require special care. They are often covered with a slightly different type of render, such as mosaic render, which has additional functions, protects particularly sensitive areas and the thermal insulation beneath the render layer.

This is first and foremost:

  • plinths – a vsymptom indicating the need for plinth insulation is its freezing in the basement of the building;
  • facade corners – this part of the building is particularly vulnerable to thermal bridges and freezing, also caused by improperly executed insulation works.

Mosaic renders used in such places allow for better protection against mechanical factors and water and moisture, providing an additional protective layer.

So which render for the facade will meet your expectations? The one that, retaining its properties for years, will adequately protect walls and other plastered construction elements of the building.

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