1. OS3
  2. OS1


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 the remainder of the building, 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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