ETL 1110-3-498
24 Feb 99
G-7. Building Number 5.
Building number 5 is constructed of concrete block walls and cast-in-place concrete roof. The
facility has 26 sliding windows and the majority are relatively tight. Leakage rate versus internal
pressure is shown in Figure G-5. Building leakage rates can be calculated using equation G-5.
log(y) = C0 + C1log(x)
(eq G-5)
where: C0 = 2.3433194
C1 = 0.63452276
y = leakage rate, L/s
x = internal pressure, Pa
100,000
Wall Type 2
Roof Type 2
10,000
1,000
100
1
10
100
1,000
Internal Pressure, Pa
Figure G-5. Building 5 Leakage Rate.
G-7
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