Air and vapour barriers
What is a blower door test? What's the cost? How do you find a company to do one?
...blower door test?
Blower door tests are becoming a standard part of building codes across North America, and for good reason. In Canada, the BC Energy Step Code is a prime example, and in the US, many states are adopting similar air leakage requirements in their codes, often referencing standards like the International...
