1. OS3
  2. OS1
  3. OH1


OS3 Safety in Use



Intent 1:

To limit the probability of premature failure and loss of airtightness of the air barrier system, which could lead to the migration of gas and fumes from the garage into a dwelling unit, which could lead to the accumulation of gas and fumes to levels that pose a risk to human health from short-term exposure, which could lead to harm to persons.

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