411 LOUVRES By RENSON
Decorative aluminium ventilation grille
2020
411 Louvres is a decorative ventilation grill made of aluminum available in different sizes. ‘411’ is the name of the party animal blowing out 50 candles this year. Renson revolutionised the field of natural ventilation in the 1970s with this louvre, made up of L.033.01 blades. They were the first ventilation louvres in which the blades were clipped in rather than welded or affixed with rivets. At that time, it was a revolutionary step forward in the field of louvre production. It’s the L.033 blades (also used in the 414 and 431 louvres and bladed walls which followed later) that will be upgraded. These louvres can now boast a free airflow of 50% rather than 45% and an air permeability upgrade from class 4 to class 3. This has no impact on the method of installation and the other components of these louvres, but it does create a ventilation louvre that can meet the requirements of the year 2020 even better.
Technical features:
- Made from aluminium sections: AlMgSi 0.5 (according to EN 12020-2)
- Stainless steel 304 insect screen (2.3 x 2.3 mm)
- Finishing: anodized in satin colour (20 micron) or powder-coated in any RAL or Syntha Pulvin colour (40 micron)
