

4000 |
||||
|
Airtighness |
Water resistance |
Wind-load resistance |
Forced entry |
CSA-A440 |
A3 |
B4 (B5) |
C3 |
F20 |
AAMA/.../A440-05 |
0.100 cfm/ft2 |
15.0 psf |
DP 50 |
Level 20 |
4200 |
||||
|
Airtighness |
Water resistance |
Wind-load resistance |
Forced entry |
CSA-A440 |
A3 |
B7 |
C3 |
F20 |
AAMA/.../A440-05 |
0.06 cfm/ft2 |
15.0 psf |
DP 50 |
Level 20 |