Carpenter Red Seal Exam Prep · Question
When constructing a dust containment barrier, what type of plastic sheeting thickness is recommended by CCOHS for effective dust and vapour control in moderate-to-heavy renovation work?
For effective dust and vapour control in renovation work with moderate to heavy activity, 6 mil (0.15 mm) polyethylene sheeting is generally recommended by CCOH
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Question: When constructing a dust containment barrier, what type of plastic sheeting thickness is recommended by CCOHS for effective dust and vapour control in moderate-to-heavy renovation work?
Answer options:
- 2 mil (0.05 mm)
- 4 mil (0.10 mm) ✅ 6 mil (0.15 mm)
- 10 mil (0.25 mm)
Correct answer: 6 mil (0.15 mm)
Explanation: For effective dust and vapour control in renovation work with moderate to heavy activity, 6 mil (0.15 mm) polyethylene sheeting is generally recommended by CCOHS guidelines for its durability and resistance to tearing, providing a robust barrier against airborne contaminants.
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