VELUX blackout roller blinds

Yes, installation is simple and designed for people without experience. VELUX roof windows have factory-prepared mounts with the Pick&Click!® system, so the roller blind cassette and side channels click into place. You will find an installation video in the product description on the shop page, showing each step clearly. The entire process usually takes about fifteen minutes.

VELUX DKL is a version with narrower side channels, a smaller cassette, and a wide range of colors. It also has a silver thermal coating on the outside. VELUX DBL is a simplified version that is cheaper, with wider side rails and a limited color range. The DBL does not have a thermal coating on the outside (its outer surface is always white).

For a bedroom, we recommend choosing DKL for its aesthetics, better thermal insulation, and wider color selection. DBL is a good choice if price is the priority. DKL roller blinds have a 3-year guarantee, while DBL has a 2-year guarantee. The VELUX DKL blackout roller blind carries the OEKO-TEST certification, which confirms that the fabric has been tested for harmful substances and meets strict environmental and health safety standards. The DBL roller blind does not have this certification.

Yes, we have blackout roller blinds (DKL, DBL, DKU) for all generations of VELUX windows, including older models from 20-30 years ago, such as old VELUX GGL and VELUX GGU series. Simply provide the exact code from the window nameplate (the window type code or size code from the nameplate). If the nameplate is unclear or you are unsure, take a photo and send it - we will check the compatibility.

To check if DBL fits your window, you need to find the window nameplate (type sign). It is usually located on the window sash after you open it. On the nameplate you will see the window type code (for example: GGL) and the size code (for example: 304, M04).

Important: the VELUX DBL blackout roller blind is intended only for VELUX roof windows manufactured before 2014. If your window is newer, you must choose the DKL model.

Never measure the glass. The size code from the nameplate is the only reliable indicator. If you are unsure, send us a photo of the nameplate.

The VELUX DKU blackout roller blind is a specialist model designed only for white polyurethane roof windows (GGU, GPU, GHU) manufactured between 1999 and 2001. It differs in its mounting profile, which is precisely adapted to the window frame from that period and does not fit wooden windows or newer generations.

DKL, on the other hand, is a universal model for most modern wooden windows. DKU is rarely needed today, but is still manufactured for these older polyurethane windows.

Read the code from the window nameplate. It contains the window type (for example: GGL) and the size code (for example: S06). In the product configurator, select a blackout roller blind (DKL/DBL/DKU) with an identical size code.

The most common mistake is confusing M04 with MK04. Although described as the same size (78x98), they are actually different sizes. If you have doubts, take a clear photo of the nameplate and compare the code character by character.

The price of a VELUX DKL blackout roller blind depends mainly on the window size (larger windows cost more) and the chosen color (Standard and Premium color groups may have different prices). You can find the most accurate price by selecting the exact window size code in the product configurator on the shop website.

Manual VELUX blackout roller blinds (DKL) are covered by a 3-year manufacturer guarantee, which confirms their reliability and durability. The DKU/DBL roller blind has a 2-year guarantee. The products are tested by performing thousands of opening and closing cycles, which ensures their durability during many years of everyday use.

Yes, manual VELUX blackout roller blinds (DKL, DBL, DKU) are made from blackout fabric that blocks 100% of sunlight regardless of the time of day or weather conditions. The side channels additionally eliminate light leaks at the edges of the glass, ensuring ideal sleep conditions in a bedroom.

The VELUX GGL SK06 window (newer generation) has glass that is approximately 5 cm longer than the older GGL S06 or GGL 606 model. For this reason, the side channels of the roller blind for SK06 must be appropriately longer so that the roller blind closes properly.

These are not interchangeable sizes. S06 will not fit SK06, even though prices may be similar. Always check the code on the window nameplate and select a roller blind with an identical size code.

You can clean the blackout roller blind gently with a dry, soft cloth or a soft vacuum cleaner attachment. Avoid aggressive chemical detergents, solvents, and hot water, as they can damage the fabric. Use mild soap and water if necessary. Regular wiping with a dry cloth will prevent the buildup of dust and dirt.

No. We cannot confirm roller blind compatibility without the code from the window nameplate. The nameplate contains the window type and size code, which are crucial for correct fitting. Without this information, the risk of ordering the wrong product is too high.

Here is what to do: open the window and look for the nameplate (usually on the glass edge or frame). Take a clear photo and send it to us - then we will be able to help. If the nameplate is completely illegible or damaged, contact us - we can try to determine the size based on the window dimensions.

In most cases, you do not need to remove the roller blind. You can simply raise the roller blind to the top and clean the window normally. The blackout roller blind retracts into the upper cassette, giving you full access to the entire window.

Removal would only be necessary in rare situations (for example: renovation, seal replacement). For regular window cleaning: simply raise the roller blind - that is all you need to do.

Yes, you can return the roller blind within 14 days of delivery, provided it is unused, undamaged, and complete with all parts. The exception is made-to-order products (special colors and sizes marked with a longer delivery time on the product page).

Important: genuine VELUX roller blind boxes have a transparent plastic window so you can verify the fabric color without opening the box. Please always check the color through this window before accepting the delivery. If you open the box, remove seals, or damage the packaging and then wish to return the product, it may be treated as used. This could result in a value deduction or rejection of the return.

Both solutions reduce room temperature, but with different effectiveness. An external awning (VELUX MHL) stops heat before it reaches the glass and can reduce indoor temperature by approximately 6-7 degrees Celsius during strong summer sunshine. A blackout roller blind installed inside (DKL) blocks light and provides additional insulation, reducing temperature by approximately 2-3 degrees Celsius.

For maximum heat protection in a bedroom on the top floor, the best solution is a combination: an external awning (MHL) on the outside for primary heat blocking, plus a blackout roller blind (DKL) inside for additional insulation and complete darkness. This combination can reduce temperature by up to 8-10 degrees Celsius compared to an unshaded window.

Currently, we do not offer custom color options. Our roller blinds are available in the colors and sizes listed on each product page. If you are looking for a specific color that is not available, we recommend contacting us directly - we may be able to suggest an alternative that matches your needs.

No. Our VELUX roller blinds are designed exclusively for windows with Pick&Click fastening system. This system ensures a secure, tool-free installation and allows easy removal for cleaning. If your window does not have Pick&Click fasteners, the roller blind will not be compatible. Check your window's nameplate to confirm the fastening system before ordering.

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