Vapor-permeable pre-covering membranes are a material usually associated with roofing construction. However, they are also used as a facade covering, especially for ventilated facades with open joints. Facade membranes usually remain invisible, serving only a functional purpose. Increasingly, however, they are also a visible element of facade aesthetics. So what qualities should a good quality membrane have for facade applications?
Facade membrane - wood
© Dorken Delta
The façade membrane segment is not yet as developed in Poland as in some other countries, but this trend should catch on in our market as well. This involves not only the introduction of new solutions in the aesthetics of buildings, but also the issue of their energy efficiency. Vapor-permeable facade membranes are most often used in open facades with an air gap between the wall cladding and thermal insulation. Such energy-efficient constructions, on the other hand, are steadily increasing. A novelty is the use of decorative membranes, which, together with openwork wall claddings, create the aesthetics of the entire facade
- explains Piotr Pytel, technical advisor of Dorken Delta.
Facade membrane - metal
© Dorken Delta
Features of a good facade membrane
Membranes used on facades have similar characteristics to those of roof membranes, but several features should be paid special attention to. First of all, because of the safety and comfort of the building. These are:
- Fire resistance
- Resistance to UV radiation
- Waterproofing
- Wind resistance
For fire safety reasons, the membrane should have a fire reaction classification in accordance with EN 13501-1. Equally important as safety considerations are its performance characteristics. Ventilated facades require the membrane to be as vapor-permeable as possible, preventing moisture in the insulation layers. The Sd coefficient should not be more than 0.3 m. It is important that the material has high resistance to tearing and weathering. For reasons, not only aesthetic, maximum protection against UV radiation should be ensured. In the case of decorative membranes, this also applies to the color pigments used.
{Facade membrane - polycarbonate,title=Facade membrane - polycarbonate}
Façade membrane - polycarbonate
© Dorken Delta
Not always in hiding
Typically, the facade membrane is located behind the wall cladding and remains invisible. Its function is primarily to provide water- and windproofing and additional protection for the breathable façade. However, it is also increasingly used as a decorative element. Facade membranes in a wide range of colors are combined with openwork facings made of wood, expanded metal, aluminum perforated panels or coverings made of glass or polycarbonate.
Facade membrane - constructions
© Dorken Delta
Depending on the type of wall covering, many interesting visual effects can be achieved in combination with a colored membrane. The possibilities for creating facades are numerous. The contrast between the membrane and the covering emphasizes the beauty of the material used for finishing, while the play of light and shadow creates an unusual three-dimensional effect on the facade. What's more, façade membranes can be laid both vertically and horizontally, thereby visually widening or slimming the building
- adds Piotr Pytel, technical advisor of Dorken Delta.
For more information, visit the company's Dörken Delta Folie Sp. z o.o. page on the A&B portal.
