RETAINING THE HEAT IN YOUR HOME – Introduction
Why should we retrofit?
- Most homes would benefit highly from air leakage controls, moisture control and ventilation to reduce condensation.
- Add extra insulation to your roof space.
- Insulate your external walls
- Understanding how your home works
- Controlling Air Leaks
- Roof spaces
- Insulating walls
- Windows and doors
- How to operate your home
Understanding how your home works
To ensure that your home will meet your final expectations and that it should not cause you new issues you need to understand your home and how it works. This will explain how building science principles will help you control the heat flow through your home, air and moisture and why all these factors should be considered together.
This topic explains insulation, air barriers and vapour barriers. Choosing the right materials and installing them the right way will ensure that the finished job will live up to your expectations.
Controlling Air Leaks
Controlling air leaks is one of the most effective retrofit activity. It is essential. It is all about identifying and sealing all possible air leaks with caulking and stripping and by applying gaskets and tapes.
Even if the roof space is already insulated there may still be opportunity to improve the energy efficiency of the home through sealing. Air leaks into the roof space can account for a lot of heat loss.
Walls usually account for about 20% of heat loss in homes. There can be cracks in a wall that can allow uncontrolled air leaks in and out of the home.
Windows and Doors
Windows and doors usually account for about 25% of heat losses in our homes. Reseal, upgrade, or replace your wall openings.
Operating your home
Like any machine your home will work only as efficiently as you operate and maintain it. Operating it efficiently will maximise your retrofitting efforts and will actually improve your homes heating, cooling and ventilation efforts, performance and durability.