1. Airflow in High-Rise Multi-Unit
Residential Buildings with Respect to
Ventilation and IAQ
! Lorne Ricketts, EIT
lricketts@rdhbe.com
! Graham Finch, P.Eng.
gfinch@rdhbe.com
10/17/2013

2. Case Study Building
! Extensive experimental program
! Perfluorocarbon tracer (PFT)
testing to measure airflows
! Long term monitoring of
pressure differences
! Pressure neutralized
airtightness testing

3. Findings
! Very interesting measured results regarding:
! Pressurized corridor ventilation systems
! Interaction of driving forces (wind, stack effect, & mechanical)
! Airtightness and compartmentalization