Façades are another element of the envelope of a building directly affecting its energy efficiency. We present three efficient façades insulation solutions.
The importance of an efficient insulation system for façades
Having an optimal system of façades insulation is not a whim of the builder to bring more value to their assets, of the Administration for enforcing energy efficiency objectives or of users for wanting to reside in a home with a high interior comfort and low energy consumption. It is a basic need for buildings that is recognized and valued by all the agents involved in a building’s lifecycle.
An optimal façade insulation:
- Avoids air infiltrations.
- Eliminates humidity problems.
- Attacks thermal bridges and, if the insulation covers the whole building’s envelope, it will help achieve the optimal insulation goals stated by Technical Building Codes.
Whether we talk about new buildings or energy rehabilitation in existing buildings, with the methods of insulation for façades presented below we obtain a high energy efficiency.
Insulation system for ventilated façades
This façade insulation system is based on polyurethane fixed to the façade (it can be an existing building). This polyurethane system has a protection sheet stated in the project, fixed to the insulation but separated from it. This separation creates a space where air circulates naturally.
Ventilated façades offer the following advantages:
- It’s a flexible system that adapts to the geometry of the building.
- It requires minimal maintenance.
- It does not reduce useful space.
- Thermoacoustic insulation function.
- It is a double layer that protects the main structure of the building.
- Also, if it is an energy rehabilitation:
- Improvement of the aesthetics of the façade thanks to the protection layer.
- Installation from the outside, so the building can be inhabited.
Injecting thermal insulation in air gaps
Injecting insulation into air gaps is a good solution for insulation of façades in existing buildings with energy deficiencies. Injected polyurethane foam is the thermal insulation system that best adapts to the spaces of each gap and offers the best guarantees and benefits.
Injecting polyurethane as a façade insulation provides the following advantages:
- Provides rigidity to the facade.
- Minimum maintenance.
- Does not invade outer or inner space.
- It’s a more economic system than putting a double skin, as in the case of ventilated façades.
Sprayed polyurethane foam in the case of partition walls
Lastly, we want to deal with cases in which, by demolition of adjoining buildings, there are uncovered partition walls that were previously protected, now with a total lack of insulation, protection, waterproofing, etc.
In these cases, the most coherent and feasible application is that of a layer of sprayed polyurethane foam, which provides insulation, improves the behavior of the partition wall against environmental agents and provides consistency to the façade itself.