Author: Karl Marx, rotec Berlin

Renson ventilation grille configurator 2026: How rotec W11, W12 and other types correspond to Renson models

Renson ventilation grille configurator 2026: How rotec W11, W12 and other types correspond to Renson models

Posted by | April 10, 2026 | , , , , , , |

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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Custom-Made Stainless Steel Mirror Sheets: How to Properly Plan for Mirror Sheets Instead of Glass Mirrors

Custom-Made Stainless Steel Mirror Sheets: How to Properly Plan for Mirror Sheets Instead of Glass Mirrors

Posted by | March 30, 2026 | , , , |

Custom-made mirror-polished stainless steel sheets from rotec are the ideal solution when projects require a high-quality mirror finish, yet safety, durability, and precise workmanship are also top priorities. Whether in commercial construction, interior design, public buildings, elevator cabs, or sophisticated design applications: Mirror-polished stainless steel sheets combine an elegant appearance with high durability and great design flexibility. rotec manufactures custom-fit solutions in Berlin and offers a technically sophisticated, comprehensive package—from material selection to fabrication.

To ensure that a stainless steel mirror not only looks great but also remains functional over the long term, the material thickness, dimensions, substrate, finish, and installation must all be carefully coordinated. That is precisely why this article explains what really matters when it comes to custom-made stainless steel mirror sheets, what technical advantages the material offers, what typical applications are, and how planning errors can be avoided from the very beginning.

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Planning smoke extraction hoods and ventilation hoods for underground car parks and roof shafts

Planning smoke extraction hoods and ventilation hoods for underground car parks and roof shafts

Posted by | March 22, 2026 | , , , |

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 2026 | Ventilation, weather protection and noise control from rotec

Posted by | Feb. 25, 2026 | , , |

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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