Ventilation grilles Archive

Ventilation grille rain resistance to DIN EN 13030: Rain protection, drainage channels and planning

by Karl Marx, rotec Berlin | July 9, 2026 | Louvre facades, Air technology, Ventilation grille | 0 |

The rain resistance of ventilation grilles is an important consideration for exposed facades, plant rooms, data centres, roof hoods and ventilation hoods. This article explains how rain resistance is assessed under DIN EN 13030, what classes A to D mean, why air velocity on the intake side matters, and when drainage channels, drip edges or water-repellent Renson ventilation grilles such as types 450, 450V, 452, 412 or rotec W11 are appropriate.

Building envelope systems 2026 | Ventilation, weather protection and noise control from rotec

by Karl Marx, rotec Berlin | Feb. 25, 2026 | Louvre facades, Ventilation grille, Products | 0 |

Building envelope systems

Building envelope systems are essential when ventilation, weather protection, noise control and architectural integration need to be planned together. rotec develops project-specific solutions for industry and architecture, supplying ready-to-install elements for facades, rooftop structures and technical building openings. These functional components direct large volumes of air safely, keep out wind-driven rain and integrate building services neatly into the building envelope. Depending on the application, the design can incorporate acoustic performance, increased strength or security-related functions. Fabrication takes place in Berlin. The supporting structure and structural engineering are generally provided by the client, while rotec is responsible for integrating its own components in accordance with the system requirements.

Custom weather louvres and ventilation grilles | rotec Berlin

by Karl Marx, rotec Berlin | Oct 14, 2024 | Louvre facades, Air technology, Ventilation grille, Products | 0 |

Functional building elements such as weather protection grilles and ventilation grilles play a decisive role in today's architecture and construction. These grilles not only protect against environmental influences and enable optimized air circulation, but also contribute to the aesthetic design of modern buildings. As a leading supplier in metal processing, rotec has been offering innovative and customized grille solutions that meet the individual requirements of each project for more than 35 years.

Aluminum floor grilles: Efficient ventilation in server rooms

by Karl Marx, rotec Berlin | Mar 24, 2024 | General, Gratings, Home, Air technology, Ventilation grille, Products | 0 |

A focus on application flexibilityIn the world of technology, where server rooms are at the heart of our digital infrastructure, efficient and reliable cooling is essential. This is where aluminum floor grilles play a crucial role. The AV500 model from Grada is a prime example of high-quality solutions that meet both technical and aesthetic requirements.

Night cooling (2026): Efficient cooling for buildings, schools and nurseries

by Karl Marx, rotec Berlin | Dec 13, 2023 | Louvre facades, Air technology, Ventilation grille, Products | 0 |

Night cooling, also known as night cooling, is an innovative method of air conditioning for buildings, schools, kindergartens and homes that is used particularly in hot summer months. It is an environmentally friendly and cost-efficient solution that is primarily used in modern buildings such as data centers, schools, kindergartens and offices.

How night cooling works
Night cooling uses the cooler temperatures of the night to cool the interior of buildings. This natural method of building air conditioning reduces the need for artificial air conditioning, resulting in significant energy savings.

Ventilation grilles for curved buildings: Linius louvres at the Galapagos project in Leiden

by Karl Marx, rotec Berlin | Nov 23, 2023 | Louvre facades, Ventilation grille, Products | 0 |

Curved Linius louvres for curved buildings: The Galapagos project in Leiden and a louvre facade installed by rotec in Potsdam show how ventilation, screening and architecture can work together.

Ventilation grilles and weather louvres (2026): Manufacturing at rotec in Berlin

by Karl Marx, rotec Berlin | Oct 14, 2023 | Louvre facades, Air technology, Ventilation grille, Products | 0 |

For anyone involved in any way with the use or processing of ventilation grilles, rotec is the right partner. Our expertise extends to 35 years of experience in the construction of ventilation grilles and weather louvers, and we are proudly celebrating our 35th anniversary this fall.

Long throw nozzles from Grada ensure optimum air flow

by Karl Marx, rotec Berlin | Aug 31, 2023 | General, Louvre facades, Air technology, Ventilation grille, Products | 0 |

The comfort and quality of indoor air in public facilities are more than just a luxury; they are in fact a decisive factor for people's health and well-being. In large premises such as shopping malls and sports halls, the requirements for air conditioning are particularly high. In this blog article, we want to put the spotlight on the innovative jet nozzles from the Belgian company Grada, which offer significant advantages in these application areas.

Aluminum lamella facade in Potsdam

by Karl Marx, rotec Berlin | Aug 28, 2023 | General, Home, Louvre facades, Ventilation grille, Products | 0 |

Façades are the face of a building and tell a lot about its function and aesthetics. In modern architectural developments, great importance is attached to sustainable, aesthetically pleasing and functional façade solutions. Louvre façades made of aluminum are particularly popular, as they can be used both as privacy screens and to control the flow of light and air.
In this blog article, we at rotec, as a 25-year premium partner of the Belgian company Renson, would like to introduce you to the high-quality aluminum façades with Renson L.050 HF slats that were installed at the swimming pool at Stern in Potsdam.

Nighttime Cooling for Schools: Planning RC2 Ventilation Grilles Safely

by Karl Marx, rotec Berlin | Apr 16, 2023 | Air technology, Ventilation grille | 0 |

Planning Nighttime Cooling for Schools the Right Way: This technical article explains air pathways, RC2 grilles, control systems, and retrofitting. Includes a bidding checklist and 14 FAQs.

Tag: Ventilation grille

Ventilation grille rain resistance to DIN EN 13030: Rain protection, drainage channels and planning

Building envelope systems 2026 | Ventilation, weather protection and noise control from rotec

Custom weather louvres and ventilation grilles | rotec Berlin

Aluminum floor grilles: Efficient ventilation in server rooms

Night cooling (2026): Efficient cooling for buildings, schools and nurseries

Ventilation grilles for curved buildings: Linius louvres at the Galapagos project in Leiden

Ventilation grilles and weather louvres (2026): Manufacturing at rotec in Berlin

Long throw nozzles from Grada ensure optimum air flow

Aluminum lamella facade in Potsdam

Nighttime Cooling for Schools: Planning RC2 Ventilation Grilles Safely

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