What are the advantages of ventilated facades over traditional ones? What materials can be used as cladding in this type of facade?

ventilated facades

What are ventilated facades?

Ventilated fa├žades, unlike traditional ones, are composed of several layers separated from each other and between which air circulates. This type of structure has multiple advantages, among which stand out the greater insulation and the possibility of using a greater range of components and aesthetic materials.

This type of structure has multiple advantages, among which stand out the greater insulation and the possibility of using a greater range of components and aesthetic materials.

Structures, usually metallic, are fixed to the internal facade or closing wall, which serve as support for an external facade. It is something like that how to add a second skin to the building.

The separation between these layers is open to the outside at certain points allowing air circulation. What is known as the chimney effect is produced, where the hot air rises through the facade, while the cold enters underneath.

A wide variety of materials can be used for the external facade. They usually look for options that not only offer insulation, but also have a low level of expansion.

Over the past few decades, these advanced building systems are increasingly valued by architects. The high price of ventilated facades is what undoubtedly limits their use, which most of the time we can find in public buildings or houses of a high standard. Even so, it is a growing trend.

Benefits of ventilated facades

  • It was calculated that save between 20% and 30% electricity consumption.
  • Ventilated facades can also offer excellent sound insulation.
  • Reduces downtime installation.
  • The times of maintenance. Let’s just think about how easy it is to loosen a piece of support compared to pulling it off a wall. It is even possible that when trying to replace one part, we harm others. In ventilated facades, the pieces are fitted with metal hooks or clamps and do not grab materials or adhesives.
  • The existence of joints between the parts that make up the exterior facade significantly reduces the problems arising from the expansion
  • It improves the stability of the building and its useful life, reducing the expansion and contraction suffered by the materials.
  • Reduces the need for internal insulation. In some cases, this also means more usable space in the house, as these internal systems may require greater thickness.
  • Eliminate thermal bridges.
  • Aesthetic benefits, as they allow the use of a greater variety of materials.

Lining materials for ventilated facades

There are different and very varied types of ventilated facades. Each material used as a coating contributes its benefits and disadvantages to the whole. These are the main materials used:

  • Extruded Ceramics. The use of supports makes this type of facade the safest and most effective for the use of this type of exterior cladding.
  • Stone: marble, slate, granite … It is a natural solution with many design options. As many as the stones.
  • Porcelain stoneware. This material stands out for its great resistance to the weather.
  • Sandwich panel.
  • wood. It is the most natural and ecological solution. Both natural woods and wood products can be used. They offer a very different appearance compared to other options, and there is a wide variety of species to choose from. Some of them are cedar, larch, chestnut or iroko.
  • Compound. Also known as technological wood, it is a highly resistant and very versatile material, made of resins and / or wood.

As for the metallic structure that serves as support, there is no standard. It will vary depending on the material chosen, the characteristics of the building, etc.