Car Park Ventilation - Natural
To form compliance with Approved Document B & F, we
must provide 5% free area openings of net car park floor
area.
Must be split with at least 50% openings on opposing
walls. The aggregate can be made up elsewhere –
including ramps.
Example:
Area 1000m
2
Total required openings = 50m
2
Free Area
Minimum elevations with at least 25% each = 12.5m
2
x 2
Aggregate elevations = 50% = 25m
2
12.5m
2
Free Area
12.5m
2
Free Area
25m
2
Free
Area
Car Park Area = 1000m2
