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Containing Construction Containments
Animation Series 3:
Containing Construction Containments
- Construction Area Contained
- Poor Containment Strategy
- Temporary Exhaust is OK
- Incorrect Ventilation Concept
Temporary Exhaust is OK
Mouse over the animated picture above to see messages which are referenced in more detail below.
Pressure relationships between rooms is designated at the bottom of each room (with a plus for positive and minus for negative pressure).
- [CONSTRUCTION AREA]: Access to a permanent exhaust port is not available, so a temporary exhaust was provided through a window or other opening in the outside wall.
The exhaust is sufficient to insure that the construction area is under significant negative pressure relative to the surrounding spaces, including those above and below
the construction area. The RETURN air is BLOCKED. The construction room is sealed sufficiently to insure ADEQUATE NEGATIVE PRESSURE is maintained at all times. If necessary,
the supply air may also be blocked so that the construction area is served by transfer air from surrounding spaces in the building.
- [OFFICE AREA]: The office area is well protected from the construction area. Air flows FROM the office area TO the construction area but not vice versa. And no construction contaminants enter through the return air stream.
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