3 reasons to insulate your ceiling

October 31, 2022

You might think that having an air conditioning system is enough to keep you & your house cool during summer. However, the New Zealand sun can be harsh, not only on us but on your house. Did you know a lot of heat can build up in your ceiling cavity? So when the sun shines on your roof and there is no wind blowing, temperatures can reach over 40 degrees (or higher – see below) in your roof space.

A few years ago, Clarke Gayford tweeted about a 53 degree temperature in his roof!

Ceiling Insulation can help block heat from entering the home in the summer which results in a cooler home and lower energy bills as you don’t need to switch on your air conditioning as often.


Start with your ceiling as that will have the biggest impact, then tackle underfloor. If you’re replacing your interior wall linings, that’s the best time to install wall insulation.


  1. Helps cool down your home;
  2. Lower energy bills and
  3. Better for your health.

So if your home is turning into a sweat box in summer, it might be time to add or check your current ceiling insulation. Get in touch with our friendly customer service team on 0508 088 888 or email sales@gforce.nz


At G-Force Healthy Home Solutions we’re all about making homes warmer, drier and more energy efficient for Kiwi families.

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