Modular Rooflights are an elegant solution for flat roofs, providing direct access to daylight. Due to the glass-top construction the light incidence is maximised, meaning that the light area is equal to the hole in the roof.
The bespoke solution consists of either fixed modules, vented modules or a combination of both. The advanced connector system and drainage gutter ensure a watertight and airtight connection between the modules. A minimised beam ensures a beautiful connection on the inside.
All modules are produced offsite at our factory, meaning every single component is rigorously tested and integrated in a controlled environment. Each component is also of the highest premium quality and is built to stand the test of time.
All prefabricated Monolight and Linearlight roof windows are CE marked in accordance with EN 14351-1. Except for Circularlight where no upstand is included. Modular Rooflights have a reference service life of 30 years in accordance with EN 17213.
Bespoke: Made-to-measure rooflight as single spots either rectangular or circular or rows of modules to perfectly match the building.
Daylight design: Daylight size equals the roof opening size.
Prefabrication: Producing rooflights off-site guarantees consistent, high-quality, and durable products that allow for reliable installation in any weather, facilitating a swift completion of the building envelope.
Daylight and heat control: One seamless solution with natural ventilation and roller blinds for daylight, glare and heat control.
Control system flexibility: VELUX Commercial provides both io-homecontrol system for smaller installations and Open System options. We do not have any extra components for Open System, but the blinds and actuators are compatible with the Open System.
Skylights can be an effective way to save energy on heating, cooling and lighting throughout the year, contributing to the overall energy efficiency of your building.
Values depend on size and glazing variant. For double glazing, Uw-values range from 1.6-1.8 W/m²K, and for triple glazing, they range from 1.1-1.2 W/m²K. These values are calculated according to EN 14351-1.
VELUX Commercial offers several forms of planning support:
VELUX Modular Rooflights have a reference service life of 30 years in accordance with EN 17213. Our rooflights are supported by a 10-year guarantee. Blinds, actuators, and other electrical components that are a part of the modular system come with a 3-year guarantee. The guarantee is subject to correct installation and usage.
While basic maintenance can be performed by facilities teams, more complex repairs would require specialist support from VELUX Commercial.
Modular Rooflights can support green building initiatives:
An EPD (Environmental Product Declaration) certification process has been initiated.
The manufacturing facilities have ISO 9001 quality management and ISO 50001 energy management system certifications.
The product meets REACH requirements for chemical regulation.
The high thermal performance and natural ventilation capabilities align with energy efficiency goals in green building certifications.
The Modular Rooflight installation significantly reduces the need for artificial lighting. It features maximized light areas that match the size of the roof openings, ensuring ample light distribution. With high light transmittance—ranging from 80–60% for double glazing and 71–55% for triple glazing—the rooflights efficiently channel sunlight into the interior spaces. Its design allows for the creation of continuous bands of natural light, while minimized structural beams enhance daylight penetration even further.
Moreover, optional roller blinds provide adjustable control over the level of daylight that enters the area, without completely blocking it, creating a well-balanced and pleasant lighting environment.
Studies have recorded savings on electricity used for lighting of up to 60% from using daylight instead of electric lighting in office buildings.