What challenges are presented by multi-story buildings for air barrier systems?

The challenges presented by multi-story buildings for air barrier systems largely stem from the complexity of transitions that occur between different building components, such as walls, roofs, and windows. In multi-story constructions, these transitions can become intricate due to the varied materials, heights, and elements involved. Properly sealing these transitions is critical for ensuring the effectiveness of the air barrier system, as any gaps or failures in this area can lead to air leaks, moisture intrusion, and reduced energy performance.

Successful air barrier installation in such buildings requires meticulous planning, detailing, and coordination among various trades to ensure compatibility and continuity of the air barrier across all stories. This can become an even greater challenge when considering building movement, thermal expansion, and differing construction methodologies used at different heights or locations of the building. Addressing these complexities effectively is essential for achieving the desired performance of the air barrier system and maintaining overall building integrity.