Fresh air supply and noise protection: Up to now, when it comes to top boxes, this has usually meant “either/or” - especially as it is important not to neglect thermal insulation. Now, however, having to compromise is passé. Because with the Thermo NB, DuoTherm has developed a box for new buildings that does everything really well.
As a rule, central ventilation systems are used in new buildings to ensure optimum air circulation. Supply air often enters the living and working spaces through wall openings or window rebate ventilators. In recent years, however, the demands on construction have risen continuously: In addition to a coherent ventilation concept, thermal insulation and soundproofing have also become increasingly important. A topic that also comes into play when installing privacy and sun protection systems.
Typical top boxes for roller shutters or external Venetian blinds quickly reach their limits here, because they cannot cover all the above-mentioned areas equally well. Therefore, if builders or owners want privacy or sun protection, they have to reach a decision when choosing from standard boxes: Do they want a permanent good supply of fresh air, or do they attach more importance to excellent sound insulation - with high thermal insulation in both cases?
Multi-level approach
DuoTherm has developed the Thermo NB specifically to achieve very good results in all areas. With regard to air circulation, the supplier from Nettersheim-Zingsheim relies on the proven fans manufactured by Aereco. The fan is installed in a slot milled in the box. This slot also has a shaft with a plaster cover. For sound insulation, however, a multi-stage system is used. First of all, the box is equipped with high-quality sound absorbers. They are made of a special, open-pored material and positioned at two points inside the box in such a way that they absorb sound waves very effectively.
Optionally, the Thermo NB can also be equipped with a labyrinthine airflow. This system ensures that sound waves are redirected and refracted several times, but without impairing air circulation. In combination with the sound absorbers, an Rw value of up to 42 decibels is guaranteed - with adequate thermal insulation and fresh air supply. The Thermo NB is also suitable for passive houses due to its insulating properties.
DuoTherm has thus not only developed the first top box for new buildings that is connected to the window via clip technology, but also that combines sound insulation, thermal insulation and fresh air supply in a balanced manner and offers excellent values, certified by external inspectors, in all areas.
Photo: Duotherm