Block Out Roller Blinds - How Much Light Do They Block?

Here at A Curtains and Blinds we specialise in the production of roller blinds at our Burleigh Factory. Roller blinds are a brilliant product - and probably our best seller. They are streamline, modern, good on the budget, improve the value of your home if selling and are great at blocking out or filtering the sunlight. But just how much light do they block out? The answer to that question is that yes the blockout fabrics do stop 100% of the light. However, there is always light that filters in around the outside of the blinds. Just how much light comes through is difficult to predict and depends on time of day and the position of the window relative to the sun. In a nutshell, block out roller blinds do suit most people's needs for light control. However, if you are looking to really limit the light and get your room as dark as possible, we highly recommend the use of blockout cord drawn curtains together with a pelmet.

Pictured here is a set of white roller blinds in fabric Dawn Arum block out complete with stainless steel pelmets. Roller blinds can be fit inside or outside the window frame. These rollers in the picture have been fitted outside the window frame. Block out blinds give you 100% privacy, however as you can see in the photograph, light can filter around the outside of the blinds which can create a 'glow' effect. This is an extreme example of the glow effect - however it is a good visual example of what we mean here. The amount of glow is difficult to predict and depends on the positioning of the window and the sun and the time of day.

In this photograph you can see a roller blind set inside the window frame. Roller blinds have small gaps around the outside when set inside the window frame to allow for the brackets to be fit in. The gaps around the outside are standard and are the same no matter what company makes them Australia wide. Here you can see an example of the light that is visible around the small gapping. Next to it you can see a curtain which naturally blocks out more light than the blind.
If you are looking to darken the room significantly we highly recommend the use of curtains with a pelmet as these can extend out past the frame thus reducing the amount of filtered light.

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