Why Insulation Is One of the Best Ways to Keep Your Home Cool in Summer
If your home feels warm and stuffy during summer, it could be due to poor insulation. When the temperature rises outside, it often rises inside too, and this makes it harder to stay comfortable. There are many ways to help keep your home cooler, but insulation is one of the best ways to keep your home cool because it slows the heat from entering in the first place.
Understanding Where the Heat Comes From
Heat naturally moves from warmer areas to cooler ones. During summer, the sun heats up your roof, walls, and windows, and that heat slowly transfers into your home. This process is known as heat gain. Once heat enters your living spaces, it builds up.
BRANZ research shows where most of this unwanted heat enters:
- Up to 35 percent through an uninsulated or poorly insulated roof
- Around 25 percent through uninsulated walls
- About 14 percent through the floor
- Roughly 30 percent through single glazed or poorly insulated windows
More than half of this heat comes from the roof and walls. This is why improving insulation in these areas is one of the best ways to keep your home cool during summer.
How Insulation Stops Heat Before It Enters Your Home
Insulation acts as a protective layer that slows heat transfer. During summer, it keeps hot air out, and during winter it holds warmth in. This helps your home stay at a more stable and comfortable temperature all year round.
In summer a well insulated home takes longer to heat up during the day. Rooms remain cooler for longer, and you do not need to rely on cooling systems as often. This reduces energy use and creates a more comfortable place to live.
Ready to Keep Your Home Cool This Summer?
At Insultech Insulation, we specialise in retrofitting high-quality ceiling, underfloor, and wall insulation into existing homes and rental properties across Waikato. With more than 30 years’ experience, our team delivers customised solutions using trusted products and materials that have been keeping Kiwi homes warm in winter and cool in summer for over three decades.
If you want an effective way to keep your home cool this summer, insulation is the perfect place to start. To arrange a free quote, contact us or call us today on 0800 313 3102.