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NOTES

Figure 2: Air movement into and out of a structure under fire conditions.

The Ventilation Profile, as defined earlier, is the appearance of the entire fire building's ventilation openings, showing the flow paths of any air movement into the structure as well as smoke, heat or flame out of the structure.

The Vent Profile is the visual condition presenting at a single ventilation opening relating to a unidirectional, bi-directional or dynamic flow path integrated with the four fire development assessment indicators (Smoke, Air, Heat and Flame). If the vent profile is the only ventilation opening then and only then can the vent profile be used in VP =BE + SAHF.