lesryder.com · Approved Document B — Table B4

Fire Resistance Period Calculator

Minimum periods of fire resistance in minutes · Purpose group / height / sprinkler provision
lesryder.com
BUILDING
CONTROL
———
ADB TABLE
B4
1
Purpose Group
2
Sprinkler Provision
← Select a purpose group first
3
Height Above / Depth Below Ground
0
m
AT GROUND
Slide to set the storey height or basement depth
MINIMUM PERIOD OF FIRE RESISTANCE — RESULT
← Complete all three steps above to calculate