Quickfit Blockout Curtains save up to 25% on home heating and cooling

23rd May 2013


Not all curtains have energy saving properties, according to Quickfit Blinds and Curtains textile designer Jane Dodge (BA Fashion Design RMIT major in Textile Design). And not all curtains prevent energy loss through windows. This is due to the fact that the level to which they block energy varies from curtain to curtain. There are many factors at play here, including the weight of the fabric, the colour, the material type, thickness of the reverse coating, and the quality of the lining to name a few.

Not all curtains will save on your household energy costs, simply because they don't all prevent energy loss. The energy-smart coating material on the reverse of our blockout curtains here at Quickfit, will be sure to block energy loss through glass windows better than ordinary curtains. By swapping out your pre-existing window coverings for our blockout curtains, you could reduce up to 25% of all your home's energy that is lost through bare windows.

Here at Quickfit Blinds and Curtains, we have ensured that all of our blockout curtains have incorporated the latest in heat retention technology available in our industry. Simply put, this means the coating used on the reverse of our curtains has been tested to ensure maximum blockout properties.

We use a 3 pass acrylic technology, and 3 layers of foam coating is applied to the reverse of the curtain as well. The first layer is white, and it basically ensures  that no colour is seen through from the front. The second foam layer applied is black. This layer prevents any light penetration, and also helps to increase your overall light protection barrier. The final and third layer is white as well. This layer is the layer seen from the outside of your window. As the colour white reflects rather than absorbs heat, having this final layer not only increases your protection barrier once more, but also inhibits heat transferring through your curtain and out of your home.

It is commonly believed that approximately 35% of heating and cooling energy loss occurs through the glass windows we have in our homes. The more windows you have, the more susceptible your home will be to massive amounts of energy loss. This is simply because windows have the poorest or lowest insulation value of any element in the home.

TIPS: For ensuring you get the most from your energy smart blockout ready-made curtains:

  • Keep your curtains closed when there is no direct sunlight on your windows (i.e. in winter).
  • When there is direct sunlight on your windows, keep them open to benefit from natural heat transfer from the sunlight.
  • During the summer months, you should always keep your blockout curtains closed to prevent energy transfer from the outside in.
  • Follow the correct size requirements for your window - try to have as close to double the curtain size. For example, if your window is 180cm wide, then you should get two (2) panels each measuring 180cm. This gives you a good number of folds. The more folds, the better your overall insulation is likely to be.
  • There are two types of blockout curtains - 3 Pass and 1 pass. For the maximum blockout properties, be sure to install the 3 Pass type, as they are true blockout curtains and possess all the advantages of the 3-layer system that we've outlined above).
  • If you live in an area that has high humidity, you need to take special care of the foam coating on the reverse of your curtains. See this article for more information: "Preventing mould on your blockout Curtains".


Here at Quickfit Blinds and Curtains, we sell two types of blockout curtains: BLOCKOUT and THERMAL. Both have a foam-backed acrylic coating applied to the reverse. Blockout has the 3 pass technology. Thermal only has one layer of white foam applied to the reverse. Whilst thermal curtains will supply some energy saving benefits, they will not provide the maximum advantages that you will get from true blockout curtains. 

The primary benefit of thermal curtains is that they do let some light into the room when they're drawn together, which can be very appealing to many decorators, as it minimises the need for artificial lighting. Many people opt for thermal curtains when they don't have direct sunlight available to their windows during the summer, and would like some light in their rooms when the windows are closed. It really is a personal choice and both have their own benefits.