The Fundementals of Smoke Control
Andover Controls Corporation 1-11
TOC
SafetyFactor is a constant added to the results to make sure they are
sufficient. A value of 0.03 wg (inches water gauge) is recommended.
Pressure buildup in an area depends on how much leakage there is.
Leakage occurs through joints, cracks, openings for pipes and wires,
gaps between doors and their door jams, and so forth. The better the
zone is sealed off from its neighbors, the easier it is to maintain the
required pressure. Since larger openings, like doorways that are
normally open, require large amounts of air to maintain pressurization,
you should avoid this type of situation.
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