Air and vapour barriers
What is a blower door test? What's the cost? How do you find a company to do one?
...air leakage is critical for saving money on both heating and cooling. In the winter, every time warm, humid air you paid to heat leaks out, cold, dry air is pulled in, forcing your furnace to work overtime.
In the summer, the reverse happens: hot, humid outdoor air infiltrates your house, making your air conditioner wo...
