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Heavy, lined curtains

Windows allow heat and cold to enter and leave the room. Heavy, lined curtains or blankets keep heat in during winter and heat out on hot summer days.

Make sure they are close fitting, hang down to the floor, and have an overlap of 100mm each side of the window to prevent the cold air next to the glass from escaping into a warm room.

The landlord may install curtaining for you.

Check your strata scheme’s by-laws as some dictate what curtains must look like from the building’s exterior.


Look for an insulating fabric and ensure they're well-fitted to restrict air movement around the window to prevent unwanted heat loss or gain.

Honeycomb or cellular blinds are an excellent choice as they trap air within cells and act like a double-glazed window.


Fitted pelmets will prevent heat loss above the windows. Pelmets can be made of any material as long as it creates an air barrier.

If you're renting you may be able to make temporary pelmets from cardboard, timber or other stiff materials. Bubble wrap or a thick piece of fabric are also options.

Pelmets need to be flush against the wall and sitting above the track, and reach to or past the curtain. Most pelmets reach over the curtain. However, you can also build a hidden or near-invisible pelmet as a single flat strip that sits behind the top of the curtain and just reaches its back edge.

An alternative to sealing the top of the curtain is to seal the base and sides to prevent cold air being drawn in. Floor-length curtains will stop air entering at the base. The curtains can be held in place by weighting the hems so that they stay in contact with the floor. If your curtains are just short of floor length, two heavy fabric-and-sand 'sausages' such as those used to block gaps under doors can hold the lower curtain edge trapped between them. Temporary tape, magnetic tape or Velcro can hold the curtain sides in place.

Last Updated: 
Sun 06/03/2016

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