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VELUX composite – a material ideal for skylight profiles.

VELUX Modular Skylights offer one of the lowest overall U-values for frame and glazing assembly on the market.
1.4 W/m2K with a standard double-glazing unit
1.0 W/m2K with a standard triple-glazing unit
for both fixed and venting modules.

A life-cycle assessment shows that VELUX Modular Skylights offer a better environmental profile than traditional aluminium skylights due to a better overall energy performance.

thermal test pattern

1 Thermal conductivity (W/mk)
– A low score means high insulation performance


Profiles used for VELUX Modular Skylights consist of an extremely low-conductive pultruded fibreglass and polyurethane composite.

2 Linear expansion coefficient (10-6 m/m K)
– A low score means high thermal stability


Whereas traditional skylight materials are bound to change form due to thermal fluctuations, the composite of VELUX Modular Skylights will maintain its dimensional properties, prolonging the expected lifetime of the application.

3 E-Modulus (GPa)
– A high score means high strength


Material that combines low-conductive properties with high strength is usually hard to achieve. Thanks to the nature of the VELUX composite we are able to combine the two characteristics, giving the slim profiles self supporting strength and an ability to support installations of considerable size.

Available Configurations

Free phone consultation to discuss options.

Free email consultation with price ranges for options.