16
WT09050X01
C: Create an appropriate ventilation open area.
NG
Good
Longitudinal
direction
Width of an opening
≥ 0.9 m
Height from the ground to
an opening ≥ 0.125 m
Height of an opening
≥ 0.15 m
Opening:
•
Must occupy 80% of the
longitudinal side of a space.
•
Must have an opening ratio of
75% or higher.
(Example: space with a louver)
(Example: basement)