Property
Air Leakage Class v1.0
Active
URL: https://opendictionary-ecstest.test-bim.com/organization/25869347-9422-4528-ac1c-65954fa4061d/dictionary/9287e0cf-0039-4370-9a67-daf4043be075/property/a279afd3-8149-4190-b649-4b463206e20a
GUID: 789a636e-b97c-4f60-b14c-51a2252255a9
Definition
The formal regulatory grading indicating the absolute maximum volume of atmospheric ingress or egress an architectural assembly permits under extreme pressure differentials.
Description
Mandatory for achieving passive-house energy efficiency certifications and preventing uncontrolled thermal losses in building envelopes.
Example
Class 1
Technical definition
Data type
String
Value list
- Class 1
- Class 2
- Class 3
Usage
Property groups (1)
References
Reference documents (2)
- EN 1026 Air Permeability of Windows and Doors v1.0
- EN 12207 Air Permeability Windows Doors v1.0