Category: Ventilation grille
Renson Linius louvre fabrication: Custom louvre facades from rotec Berlin
rotec fabricates Renson Linius aluminium louvres into project-specific louvre facades, ventilation grilles and equipment enclosures. For 30 years, this Berlin-based Renson premium partner has combined system expertise with its own manufacturing and installation experience.
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D40 Ventilation Hood for Underground Garage Ventilation: A Project from Hamburg
This project example shows a D40 ventilation hood for the underground parking garage ventilation system of an office complex in northern Hamburg. The existing shaft opening was part of the project-specific ventilation concept and was used for air distribution. However, the horizontal grating provided only limited protection against rain, snow, and leaves entering the shaft. For this reason, rotec developed a weather-optimized ventilation hood as a custom design specific to the project. The D40 ventilation hood directs the air through lateral louvered surfaces. At the same time, the slightly domed roof directs precipitation away to the sides. This article explains the initial situation, the structural design, and key planning requirements. Key Points at a Glance: rotec developed and installed the D40 ventilation hood as a custom design specific to this project. Side...
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Ventilation hoods as street furniture: Cleverly combining seating and green roofs
Ventilation hoods, as elements of urban furniture, combine technical ventilation with enhanced quality of life. This article demonstrates how seating areas, backrests, green roofs, open-air spaces, maintenance access, and appropriately designed louvers are planned on a project-by-project basis. rotec develops and manufactures custom solutions for rooftop terraces, courtyards, underground parking garage ceilings, and outdoor areas.
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Ventilation grille rain resistance to DIN EN 13030: Rain protection, drainage channels and planning
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.
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Night cooling for data centres: Planning secure ventilation openings
Night cooling requires suitable airflow routes and coordinated building openings. rotec explains how airflow performance, RC2 security, weather protection and noise control determine grille selection. Original photographs and a manufacturing video show the practical implementation. Existing documents and known requirements are sufficient for an initial project discussion.
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Ventilation and solar shading for data centres (2026): Reliable airflow, night cooling and energy efficiency
Ventilation and solar shading for data centres must meet safety, energy-efficiency and specification requirements. rotec supports architects, specialist designers, facade contractors and main contractors with technical advice, burglar-resistant ventilation grilles, weather louvres, solar shading louvres, floor grilles and project-specific manufacturing in Berlin.
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Planning Renson acoustic louvres correctly (2026)
Renson acoustic louvres provide a technical solution for facades, plant rooms, rooftop structures and enclosures, data centres, industrial buildings and car parks where airflow, screening, weather protection and sound insulation must be planned together. This technical article compares the Renson Linius acoustic louvres L.060AC, L.150ACS, L.150ACL, L.170ACS and L.170ACL. It explains sound insulation values, free area, K-factors, applications, installation guidance and common planning mistakes. It also describes how rotec supports technical coordination, advice, supply and installation. The article is intended for architects, design practices, building services engineers, facade contractors, metal fabricators, industrial businesses and building owners looking for a suitable louvre solution for technical building openings.
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Renson ventilation grille 411: Planning, specifying and configuring rotec W11 online (2026)
The Renson 411 ventilation grille corresponds to the rotec W11 ventilation grille. This article covers technical data, installation frames, free area, weather protection, installation, specification text, CAD downloads and the rotec online configurator. It also explains how rotec supports architects, designers, metal fabricators and industrial businesses with ventilation grilles, roof hoods and technical building openings.
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Renson ventilation grille configurator 2026: How rotec W11, W12 and other types correspond to Renson models
The rotec Renson ventilation grille configurator makes it easier to identify the corresponding grille types in the new shop. This article explains why rotec W11 corresponds to Renson type 411, how the W-series naming system works, and what designers, metal fabricators and technical buyers should consider when selecting ventilation grilles and weather louvres. It also shows how established Renson louvre profiles can be combined with custom manufacturing in Berlin, direct configuration and personal technical advice.
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Planning smoke extraction hoods and ventilation hoods for underground car parks and roof shafts
Further roof solutions for daylight, ventilation and smoke and heat exhaust. In addition to smoke extraction hoods, flat roofs can incorporate rooflights for daylight, ventilation, roof access or smoke and heat exhaust. Our article on configuring and comparing flat-roof domes online helps with product selection and technical assessment. Natural ventilation of underground car parks uses openings or ventilation shafts for air exchange. Wind pressure, thermal buoyancy and pressure differences move the air, so a continuously running fan is not required to generate airflow. However, this solution is not automatically suitable for every car park. Size, use, traffic volume, geometry and state building regulations determine the requirements. The openings must also be sufficiently large, appropriately distributed and...
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Building envelope systems 2026 | Ventilation, weather protection and noise control from rotec
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.
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Acoustic louvres for plant rooms, rooftop installations and car parks
Acoustic louvres for plant rooms, rooftop installations, air-conditioning equipment and car parks. rotec supports airflow design, noise control and planning.
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Acoustic louvres on a high-rise building in Berlin City West | rotec
Project report from Berlin City West: rotec manufactured and installed acoustic louvres for the rooftop equipment of a high-rise building on Budapester Straße. Includes original photographs, Renson data and planning guidance.
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LINARTE wall and facade cladding (2026): Specification and installation throughout Germany with rotec
LINARTE wall and facade cladding offers a high-quality solution for commercial and industrial buildings. This article explains how to plan the variants, module spacing and connection details, and how to integrate the supporting structure, rear ventilation, doors and gates. It also includes a practical checklist, common mistakes and how to avoid them, an FAQ and a glossary. rotec manufactures in Berlin and supports your planning, specification and installation throughout Germany.
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Custom weather louvres and ventilation grilles | rotec Berlin
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.
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Renson louvre walls: Manufacturing, installation and projects by rotec
For 30 years, rotec in Berlin has been offering comprehensive solutions for the installation and manufacture of Renson slat walls. Particularly noteworthy is our comprehensive service package for: Louvre walls, aluminum facades, parking garages, roof enclosures, air conditioning enclosures, weather protection grilles, Linarte wall claddings
From planning, measurement and production to optional installation throughout Europe - we offer you everything from a single source.
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Custom ventilation grilles with fast delivery in 2026: Weather louvres from rotec
Custom ventilation grilles with fast delivery: rotec manufactures high-quality ventilation grilles and weather louvres in Berlin using Renson systems. Customers can configure suitable grille types online, check technical data and prepare a focused enquiry. These products are particularly suitable for facades, plant rooms, roof hoods, refurbishment and urgent construction projects.
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Parking garage louvre façade: Renson Linius L.050 louvre blade & perforated metal panels
In the vibrant heart of Rotterdam, a metropolis recognized worldwide for its pioneering architecture and progressive approach to urban development, rises the "Uptown Rotterdam" parking garage project. This flagship project is an impressive illustration of how the symbiosis of modern technology and aesthetic design can shape the future of urban infrastructure. Through the clever integration of Renson brand louvers together with first-class perforated metal panels, this building sets new standards in the design of parking garages.
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Aluminum floor grilles: Efficient ventilation in server rooms
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.
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Night setback in data centers: security and efficiency with Renson 431RC2 burglar-resistant ventilation grilles
Lowering the temperature in data centers at night is an advanced method of reducing operating costs and significantly improving energy efficiency. In conjunction with burglar-resistant ventilation grilles such as the type 431RC2, certified to DIN EN 1627, this opens up an innovative way of ensuring security and efficiency in equal measure. .....
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LINARTE privacy fence with LED lighting
Linarte privacy screen Elegance meets functionality: The LINARTE privacy fence from Renson - Exclusively at rotec Berlin Welcome to our blog! Today I would like to introduce you to something very special: the LINARTE privacy fence with LED lighting from Renson. As the exclusive contractual partner of Renson in Germany, rotec Berlin offers you these extraordinary fences that perfectly combine design and privacy. A masterpiece of aesthetics The LINARTE series is more than just a privacy fence. It is a statement from Renson for high-quality wall cladding and slatted walls. With its clear, linear aesthetics, the...
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Night cooling (2026): Efficient cooling for buildings, schools and nurseries
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
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.
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rotec Klima enclosure louvre wall in Frankfurt with impressive panorama
At the heart of the impressive skyline of Frankfurt am Main stands an impressive testimony to technical expertise and design innovation: a louvre wall façade, designed, planned and installed by rotec, fitted with louvres from our long-standing premium partner Renson.
For 35 years, rotec has been shaping the slatwall industry, bringing unmatched experience and expertise to the table. Our continuous commitment to the highest quality has made us a leading player in the field. Every project we complete reflects our firmly held values of consistency, precision and excellence.
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Ventilation grilles and weather louvres (2026): Manufacturing at rotec in Berlin
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.
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Night ventilation for buildings: Natural cooling and energy savings
Night ventilation uses cool outdoor air to reduce heat in buildings during summer. Discover how rotec creates secure ventilation openings with protection against weather, insects and break-ins.
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Long throw nozzles from Grada ensure optimum air flow
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.
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Rotec technical enclosure in Hamburg with Renson lamella L.120.01
The requirements for modern air conditioning unit enclosures are diverse. In addition to the aesthetic component, technical factors such as span width, material resistance and ease of installation also play a decisive role. In a completed project in Hamburg on Anckelmannstraße, Rotec was able to master these challenges with aplomb. The key role was played by the L.120.01 louvre blade from Renson, one of our long-standing premium partners.
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Aluminum lamella facade in Potsdam
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.
Acoustic louvre wall in Berlin: Planning enclosures for air-conditioning equipment
An acoustic louvre wall in Berlin for air-conditioning and rooftop equipment: This technical article covers planning, airflow, acoustic requirements, and manufacturing and installation by rotec.
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SUNCLIPS solar shading louvres for schools and office buildings
SUNCLIPS solar shading louvres provide external shading for schools and office buildings. A school project in Luxembourg illustrates key planning and fixing considerations. rotec designs, manufactures and installs your complete system using Renson louvres.
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Shaft smoke extraction for elevators
The rotec roof hatch RW3000 was developed in 2018 especially for shaft smoke extraction for elevators on flat roofs. The motor of the closable roof hatch can be controlled by any on-site SHEV system or manually, allowing flexible control.
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Custom curved and rounded ventilation grilles
Contemporary design is constantly evolving and increasingly requires customized shapes that give buildings a unique aesthetic. In this context, rotec has created an innovative solution that allows architects to realize their creative visions by means of a curved slat wall.
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Nighttime Cooling for Schools: Planning RC2 Ventilation Grilles Safely
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.
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Intrusion-resistant ventilation grilles for data centers
Burglary-resistant ventilation grilles for data centers protect security-critical building openings without compromising necessary airflow. Particularly in server rooms, technical centers, and industrial buildings, airflow, weather protection, access control, clear cross-sectional area, and installation conditions must be carefully coordinated. rotec supports architects, MEP engineers, security planners, facade contractors, metal fabricators, and facility operators in selecting suitable RC2 and RC3 ventilation grilles for demanding projects.
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Poke-proof louvre façade for gas storage and transformer stations
We at rotec GmbH Berlin are proud to set innovative standards in the field of façade design. Our latest project, the development of an opaque and puncture-proof louvre wall, sets new standards for functional and aesthetic solutions. The façade, specially developed for a gas storage facility in Freiberg, Saxony, combines safety with modern design. was developed for a gas storage facility in Freiberg (Saxony). When selecting the components, we opted for the tried-and-tested Renson L.033V slat.
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