Question 1

Found vermiculite mid-renovation in Ottawa, do I stop the work?

Accepted Answer

Stop the work now, and do not disturb the material further.

If you have found what looks like vermiculite mid-renovation in Ottawa, Health Canada's advice is clear: do not disturb it or attempt to remove it yourself, and have it tested by a professional before any work resumes. Vermiculite-based insulation may contain asbestos, and a lab test tells you what yours contains.

What the rules say from here

Once you have a test result, the path forward depends on whether the material contains asbe

Question 2

Removing a wall in an old Ottawa house, where could asbestos be?

Accepted Answer

Where Asbestos Can Hide in an Ottawa Wall Removal

In a house built before 1990, several materials inside and around a wall can contain asbestos, and disturbing any of them without testing first is the point where costs and legal requirements change quickly.

The materials to check, drawn from Health Canada and Ontario's guide to O. Reg. 278/05, include:

- Joint compounds on drywall seams (Ontario's guide)
- Textured paints or coatings (Ontario's guide)
- Plaster (Health Canada lists cement an

Renovation & Demolition

Found vermiculite mid-renovation in Ottawa, do I stop the work?

Removing a wall in an old Ottawa house, where could asbestos be?