Passive cooling is the least expensive means of cooling a home in both financial and environmental terms. It focuses on heat gain control and heat dissipation in order to improve the indoor thermal content with low or no energy consumption, it’s natural air conditioning.
Insulation is the most effective way to improve the comfort and energy efficiency of your home. A fully insulated home means you'll spend less on heating in winter and cooling in summer.
2. Draught proofing
Draught proofing, or sealing up gaps and cracks, will minimise the amount of heat entering your home and reduce your cooling bills.
3. Window design, orientation and coverings
Windows can let a lot of heat into your home during summer, especially if you have large west, east and north-facing windows that aren't adequately shaded. Discover simple steps to reduce heat gain through your windows here.
Ventilation is an important way to regulate your home's air temperature and keep it free of condensation build-up. Once the temperature starts to drop in the evening, or after a cool change, it's important to open your doors and windows to flush warm air from your house and allow cooler outside air to enter. The benefits are likely to be greatest if you open doors and windows facing the breeze and also doors and windows on the opposite side of the house.
Careful selection and positioning of plants can provide summer shading and act as a buffer against hot winds. Tall, deciduous canopy trees provide shade to north windows while still allowing the lower winter sun through. Smaller, deciduous shrubs are useful for shading east and west windows and walls. Deciduous creepers over a north-facing pergola will provide shade for windows and walls.