This module will look at step five. This is a phenomenon which occurs when the air in the roof space is excessively high when compared to ambient. This may be due to solar or space heating of this area and may cause the smoke to stop rising before it reaches the extract point.
Stratification occurs early in the fire development due to the smoke losing its buoyancy relative to its warmer surroundings
We now want you to carry out exercises 38-43 and then view the model answers below.
Exercise 38
Exercise 39
Exercise 40
Exercise 41
Exercise 42
Exercise 43