Air Barriers | - All air/vapour barrier membrane installations shall be orientated according to manufacturer‟s specifications.
- In all circumstances the air/vapour barrier shall overlap the foundation wall a minimum of 150 mm.
- All joints must be overlapped (minimum 150 mm) and rolled to eliminate all creases and as per the installation manual.
- All installations must meet the approval of the design Architect and the University of Lethbridge Building Envelope Commissioning team.
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