Standards are made to compare the performance of various windows in similar conditions.
Test results based on the CAN / CSA A-440-M00 standard | Min. | Max. | |
---|---|---|---|
Airtightness is rated from | A1 | A3 | A3 |
Watertightness is rated from | B1 | B7 | B3 |
Wind resistance is rated from | C1 | C5 | C4 |
Forced entry resistance is rated from | F1 | F2 | F2 |