Imagine that your home is a boat or hot air balloon. Any leak you find must be plugged. It’s really the same with houses. As warm air migrates to the coldest areas, (ex. outside air) it seeps through walls, roofs, cracks, doors and windows, so it is important to know how to prevent heat loss.
Although it is generally unprofitable to reinsulate an existing building, major renovation can provide a good opportunity to enhance the insulation. Poorly insulated but accessible roof spaces are one example.
Make sure door and window frames are well caulked and install weather stripping. Caulk the junction between the outside walls and the foundation. Air intake is greatest at this location in most Canadian homes.
Add a window liner to basement windows as well as to windows that are not often used. A window liner is a plastic film that can be installed and then shrunk with a hair dryer.
If any of your windows are single-glazed, it would be a good idea to replace them with double or triple-glazed windows.
Replace your hollow outside doors with insulated doors. Touch the inside of your door. If the surface is colder than that of your inside walls, replace it with a better insulated door.
Clean the tracks of your sliding doors. Dust and debris of all kinds can force your doors out of alignment and let outside air in.
To save even more, perhaps it's time to replace them by new high energy-efficient ones. Take advantage of grants available to upgrade your equipment.
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