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What are Block Out Curtains?

Last Updated Jun 25, 2014 · Written by


If you are tired of light entering your home when you don’t want it, it’s only natural that you’ll be looking for a way to stop this happening.  An excellent solution to your unwanted light problem is to use block out curtains.  Here, we explain exactly what they are.

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About Block Out Curtains

Block out curtains, as the name implies, are curtains that are designed to block out the light when they are fully drawn.  Block out curtains can be made from a very heavy, tightly woven fabric, but they are more commonly made by lining a curtain fabric with a heavy backing that light cannot penetrate through.  While the fabric that the curtains are made from is very important in blocking out light, it is just as important to ensure that the block out curtains cover the window as completely as possible as any gaps will let the light through.

Why Choose Block Out Curtains?

Block out curtains are a great choice for a number of reasons.  Firstly is the fact that you can draw them at any time of the day to create darkness inside.  This is of particular benefit to people that work unusual hours, such as shift workers, or people that wish to sleep throughout the day.  The ability to block light can also make it easier and more fun to watch movies with your home theatre system at any time of the day.

Block out curtains also has benefits in regards to energy efficiency.  Even though their primary purpose is to block light, blocking the light also means that you are blocking the heat from entering the home.  This means that the home remains cooler naturally, reducing your reliance on air conditioning and lowering your electricity bills.  In winter, block out curtains serve the opposite purpose. They stop the heat from escaping through the windows so your heater doesn’t have to work as hard, again saving you money.

As well as their thermal insulation benefits, block out curtains also have noise insulation benefits.  Their thickness and the way that they cover the windows mean that they can actually stop noise from transferring into the home.  This means that your home is quieter and more pleasant inside.

Block out curtains, while being incredibly useful, are also very attractive.  They are available in a range of colours and patterns so you can choose one that suits your room the best.  Of course, they are also available in a range of standard sizes to fit most windows or you can have them custom made to fit your window exactly.  You also have a choice in how the curtains are hung – as tab top, using eyelets, as pinch pleats and so on.


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