From Risk to Performance: What Commercial Rooflight Specifiers Need to Know

For anyone specifying commercial rooflights, the most important decisions are often made long before a product reaches site.

That is the view of Bill Woodham, VELUX Commercial UK&I National Sales Manager, who believes early technical engagement remains one of the most effective ways to reduce project risk and improve long-term building performance.

The philosophy sits at the heart of VELUX Commercial UK&I's ‘Others Make Products. We Make It Personal.’ campaign, which focuses on understanding the specific needs of each building rather than relying on standard product assumptions.

"Good rooflight specification is about reducing risk before it becomes expensive," says Bill. "If we get involved early enough, we can help shape the solution around the building, the programme and the people who will ultimately use it."

The advice is particularly relevant for refurbishment projects, where existing structures, changing building use and compliance requirements can introduce significant complexity. "It's easy to underestimate an existing roof," Bill explains. "Once you're dealing with fire performance, access requirements, maintenance obligations and long-term durability, the rooflight becomes a critical part of how the building operates."

That means specification decisions should be driven by project requirements rather than product familiarity. Applications such as walk-on glazing, inaccessible roof areas, smoke ventilation and specialist daylighting solutions all require careful consideration. The earlier those conversations take place, the greater the opportunity to align performance, compliance and budget objectives.

For VELUX Commercial UK&I, making specification personal means starting with the building and the brief before recommending a solution. Whether the requirement is a modular skylight system, smoke ventilation product, bespoke daylighting solution or the new VELUX Modular Skylights DIM system designed to help control light spill around roller blinds, the focus remains on helping specifiers identify the most appropriate answer to the challenge in front of them.

Bill also highlights the role of off-site manufacture in helping reduce uncertainty during construction. "When modular systems are prefabricated, you remove many of the variables that can affect quality and programme performance on site. That helps improve consistency and gives project teams greater confidence in the final installation."

Beyond product selection, Bill believes education remains an important part of the specification process. "The more we can help specifiers understand daylighting, smoke ventilation, indoor climate and sustainability, the easier it becomes to make informed decisions. That's part of making it personal - listening to the brief, understanding the building and providing practical advice that fits the project."

As sustainability targets continue to influence commercial design, rooflights are increasingly expected to support energy performance, occupant comfort and wider environmental objectives alongside daylight provision.

For Bill, the conclusion is straightforward."Every project is different. The best outcomes come when solutions are tailored to the building, the brief and the people who will use it. That's what making it personal means, and that's where the greatest value for specifiers is created."

For more information, visit www.commercial.velux.co.uk/ or contact the VELUX Commercial UK&I team. For more in-depth conversations with the people behind the products, you can also listen to the VELUX Commercial UK&I podcast series here.