How weatherization affects homes

In Southern Ontario, we know that the weather can be very unpredictable, in a single day we can experience the affects of hail, snow and rain. Depending on the season temperatures can range between -30 and +30ºC. Homes in Ontario for this reason need to be properly weatherized, so that they can be protected from the elements. The most important aspect of weatherization is heat, and for home builders the challenge is to keep heat in during the winter, and out in the summer.

Some common weatherization methods are:

  • Sealing cracks, gaps, and holes around doors, windows, pipes and wiring that penetrate the ceiling and floor
  • Sealing recessed lighting fixtures, which leak large amounts of air into unconditioned attic space
  • Sealing air ducts, which can account for 20% of heat loss
  • Providing proper ventilation to unconditioned spaces to protect a building from the effects of condensation
  • Installing insulation in walls, floors, and ceilings, around ducts and pipes, around water heaters, and near the foundation and sill
  • Replacing older windows with energy efficient windows