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Performance parameters | |||||
Sequence | Test ltem | Unit | Test results | Level determination | |
1 | Air tightness performance | Air permeability per unit seam length q1 | [cubic m/(m.h)] | 1.4 | Level 6 |
(under positive pressure of 10Pa) | Air permeability per unit area q2 | [cubic m/(square m.h)] | 2.3 | Level 7 | |
2 | Air tightness performance (under negative pressure of 10Pa) | Air permeability per unit seam length q1 | [cubic m/(m.h)] | 1.3 | Level 6 |
Air permeability per unit area q2 | [cubic m/(square m.h)] | 2.2 | Level 7 | ||
3 | Water tightness performance | Pa | 350 | Level 4 | |
4 | Wind resistance performance | (Grading detection positive pressure) | kPa | 2.68 | Level 4 |
Wind resistance performance | kPa | 2.69 | Level 4 | ||
5 | Thermal insulation performance | Heat transfer coefficient | W/(square m.K) | 2.2 | Level 6 |










