VELUX products are manufactured at production sites in nine countries. All production sites are certified to the ISO 9001 quality standard, which means that they are regularly audited by third parties.
Our own quality team audits production sites regularly to ensure that windows and accessories leaving the factories meet the required specifications and VELUX quality standards. During 2015, 35 warranty quality audits were conducted.
Materials, components and finished products are systematically sent from the factories to the VELUX Group Quality Lab to monitor quality levels at all times. Process controls built into the production equipment and performed by operators, combined with inspection and testing of finished products, are part of the quality management system that ensures consistent and high standard of VELUX products.
The components test programme includes:
- Corrosion resistance of metal parts
- Wood impregnation
- Wood humidity
- Glass quality and lifetime.
The finished products test programme includes:
- Durability tests
- Resistance to rain and snow at different wind speeds
- Low temperatures
The VELUX Manufacturing Model ensures continuous improvements
We apply a formalised approach to continuous improvement of the manufacturing processes. The approach is inspired by the Lean methodology and termed the VELUX Manufacturing Model (VMM). VMM has been one of the cornerstones of our production for more than ten years.
Every production company goes through a VMM assessment once a year. The assessment is carried out by 12 internal VMM assessors, and the results provide a sound basis for internal benchmarking and continuous improvement.