VELUX external awning blinds

Yes. The VELUX MHL awning roller blind is compatible with both newer and older VELUX roof windows. It also fits the most popular models: GGL, GGU, GPL, and GPU, regardless of the year the window was manufactured. This means that if your VELUX window has a code (even if the window is over 30 years old), you will be able to install the MHL awning roller blind in the appropriate size. However, it is important to check the full window code, as the awning roller blind size must match your window size.

The external awning roller blind is significantly more effective. It operates on a completely different principle than an internal roller blind.

External awning roller blind (MHL): Blocks solar rays before they reach the glass. It stops up to 80% of heat before it enters the room. Can reduce room temperature by 6–7°C.

Internal roller blind (e.g., DKL): Blocks light after it enters the room, but heat has already accumulated behind the glass. Reduces temperature by 2–3°C.

For this reason, the external awning roller blind is ideal for summer heat.

Yes, this is an excellent solution. The VELUX MHL awning roller blind works perfectly in combination with internal roller blinds, especially with the DKL blackout roller blind. This combination offers:

Summer: The awning roller blind (external) stops heat, while the internal DKL roller blind provides complete darkness.

Winter: The internal DKL roller blind helps retain heat (additional insulation layer), while the awning roller blind should be retracted.

Energy costs: Together, they can reduce room temperature by 8–10°C compared to an unshaded window.

Important: If you combine an awning roller blind with a solar-powered internal roller blind on the same window, the solar battery's ability to charge will be limited or eliminated.

The MHL awning roller blind fits practically all types of VELUX roof windows. Regardless of the year the window was manufactured. However, the awning roller blind must be matched to your window size. The size is indicated by a code on the window's nameplate (e.g., MK04, S06, MK06).

Example: An awning roller blind for a GGL MK06 window has the code MHL MK06. For a GGL S06 window, the code is MHL S06, and so on.

If you cannot see the nameplate or the code is illegible, you can measure your window's dimensions or contact us — we will help you match the correct size.

The VELUX MHL awning roller blind reduces room temperature by 6–7°C in conditions of strong direct sunlight (especially in summer when the sun shines directly on the window).

The actual temperature reduction depends on the window direction (south-facing windows benefit more), time of day (maximum effect at midday), and weather conditions (on cloudy days, the awning roller blind has less impact).

The VELUX MHL awning roller blind can be installed by yourself if the window is within reach (up to 2 meters from the floor). Installation typically takes 10–15 minutes and requires no special tools — just a screwdriver. You will find a video in the product description showing how to install this product on your window.

Cleaning the awning roller blind: Use a soft brush or cloth to remove dust and leaves from the structure. You can also use warm water with gentle soap — gently wipe the fabric.

Important: Do not use aggressive cleaners (solvents, gasoline). Cleaning twice a year (spring and autumn) prevents dirt accumulation.

No. The VELUX awning roller blind is designed for use in summer and spring. The awning roller blind is resistant to rain and wind, but in winter, fully retract the awning roller blind to protect it from snow and ice. The awning roller blind withstands wind gusts, but during sudden weather changes, it is recommended to retract it into the upper cassette of the window.

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