Air and vapour barriers
What is a blower door test? What's the cost? How do you find a company to do one?
...codes - the new BC Energy Step Code in British Columbia, Canada is one example. A blower door test is often an essential part of a home audit, we don’t know for sure just yet if it will be part of the free home energy audits promised by the Canadian Liberal Government in Oct 2019 as part of their as part of their Net ...