Retrotec Residential Pressure & Air Leakage - Manual (Page 25)

Page 25 of 75
3.9 Standards specify test procedures for air leakage testing
The following Table 4 lists the procedures for testing and results for various protocols from around the world.
Table 4: Acceptable testing conditions, test setup requirements and results for various protocols from around the world.
Standard
ASTM CGSB EN13829 ATTMA USACE WA State LEED
Applies to Residences
Residences Residences
Residences
& Large
Buildings
Large
Buildings Large
Buildings
Apartments
Origin USA
Canada Europe UK USA WA State North America
Acceptable
conditions
41 to 95°F
< 5 mph wind
<20km/h
wind
<6m/s
wind
height x
ΔT<500m°C
<6m/s wind
height x
ΔT<250m°C
Bias<10% of
min. test OR
<30% for both
ways
95%
confidence
interval
Same as ASTM
Baseline
points
10 second
averages,
before and
after flow
measurements
Before each
test
measurement
30 second
averages,
before and
after a test
30 second
averages,
before and
after flow
measurements 20 second
averages,12
points before
and after flow
measurements 10 second
averages,
before and
after flow
measurements 10 second
averages,
before and
after flow
measurements
Induced
pressure
point
range
10 to 60 Pa
15 to 50 Pa 10 to 50 Pa 10 to 60 Pa 25 to 75 Pa 25 to 80 Pa 10 to 60 Pa
Number of
points
5-10
1, 2, or 7 5 7 12 12 5
Test
Direction
Preferred
Both
Depress. Both Both Both Both Both
Test
Direction
acceptable
Either but
usually
depress.
Depress.
Usually
depress.
Usually press.
Both unless
building
requires over
125,000 CFM
Both either
Results
EfLA @ 4Pa
ACH50
CFM50
EqLA @10Pa
ACH50
(m 3 /h)/m 2 (m 3 /h)/m 2 CFM75/sq ft CFM75/sq ft EfLA @ 4Pa
Required
results
none
none none
2 to 10
(m
3 /h)/m 2
0.25
CFM75/sq ft 0.40
CFM75/sq ft 1.25 sq in/sq ft
EfLA @ 4Pa
Notes on Standards

Canadian Eco-Energy complies with CGSB 149.10

DS/EN 13829 is a multi-point test so the gauge is used to take multiple readings which are recorded in
turn. Each reading on the gauge measures a single-point pressure of the enclosure. Flow per unit area
is sometimes referred to as Air Permeability. The gauge can provide a quick single-point check of the
enclosure as follows:
1. Press [Mode] to scroll to the “Flow/Area” mode.
2. Press [Enter] and input the Envelope Area, to display Air Permeability as specified in the standard.
3. Results may be read directly from the gauge.