As of January 1, 2024, handling & disposing of asbestos in BC in commercial renovations is now regulated & requires training & certification. Read more here.
Negative pressure enclosures are required for high-risk asbestos removal projects and aside from some variables including size and worker occupation, the fundamental components of an enclosure are essentially alike in design.
It is impossible to know if there is asbestos in a house or commercial building that was built before 2000 without calling in licensed asbestos surveyors to assess and test. Read more here.