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Application of an air barrier material to interior surfaces of a building needs clear planning and special attention paid to every joint, overlap, and penetration.

What is the main purpose behind air barrier interior applications?

• To control entry of interior moisture-laden air into cavities during heating periods.
• To protect the material from the elements during install and for life inside assemblies.

Important Considerations for Interior Air Barrier Installations:

• There are many penetrations - keep a close eye on making the air barrier continuous across openings and planned holes for utilities.
• Be extra cautious to avoid and/or quickly repair cuts and tears during construction
  
• Be thorough and purposeful with the air barrier installation - aim for as tight an envelope as possible.