Property
Air Leakage Class v1.0
Active
URL: https://opendictionary-ecstest.test-bim.com/organization/25869347-9422-4528-ac1c-65954fa4061d/dictionary/4c7cdaf6-c405-44bf-9080-8359697e1668/property/39e60a13-c4dc-47cc-b67a-98d9e5ada54f
GUID: 97b57bdf-ceab-48a1-b233-a892203a1452
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