When the summer temperatures peak so do our tempers, as we become hot and bothered in our own homes. And making it more frustrating is the fact that keeping our homes cool in summer without the benefit of a costly energy-hungry air conditioner, is not a simple open and shut case.

Windows and doors are responsible for a lot of the heat loss and heat gain of a home, and knowing how to effectively use and treat these is critical for optimum indoor conditions.

If your home is properly insulated, then keeping your windows and doors closed during the heat of the day, and opening them up as the summer temperatures drop in the evening and early morning is good advice. However if your home is not insulated then closing your doors and windows could be counterproductive, creating a greenhouse effect.

Planting trees close to your home to provide shade up against windows and doorways will drop the temperature and cool the air close to your home.

Certain window treatments are very effective thermal insulators, restricting the amount of heat gain and keeping the interior cool.

Interior wood blinds, when completely closed and lowered can reduce heat gain around 45%* and they are very effective at directing the light into a room.

Shutters are brilliant thermal insulators, their adjustable louvres allow ventilation and light control while limiting the heat gain through windows and doors.


Exterior shutters are top-performers when it comes to thermal insulation in summer, providing an effective, attractive barrier between outdoor heat and the window or door glass pane. Aluminium Security Shutters are also great for added security and do not take up any indoor space.

External outdoor shutters are also ideal when creating an outdoor entertainment space that is comfortable during both the day and evening; blocking out unwanted sunlight and heat or directing a breeze.


Here are some more tips on how to stay cool this summer:

  • Make sure you have the right insulation in your home
  • Use your outdoor spaces and swim to stay cool


  • Don’t slave away in front of a hot stove or oven, prepare cold meals or braai
  • Install insect screens to keep the mosquitoes away when you open windows and doors at night


  • Turn off unnecessary lights and electrical appliances
  • Decorate with light and airy colours that reflect light


  • Take quick cool showers
  • Use thinner bedding and fan when sleeping

We need to do what we can to stay cool and make the most of our glorious summer weather, because before we know it, we will be moaning about the cold and longing for the summer heat again.

Window To Design
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