depressurization

Challenges and opportunities arising from different ventilation approaches: controlled experiments conducted at the Canadian Centre for Housing Technology

Submitted by on Mon, 01/13/2025 - 17:25

The ingress of naturally occurring radioactive radon gas from the soil into buildings can occur both by convection through any openings in the foundations as a result of pressure differentials and by diffusion across an airtight barrier (World Health Organization 2009). Residential ventilation systems and exhaust devices can affect indoor radon concentrations if they result in depressurization of the conditioned spaced relative to the outdoors or to the soil below the foundations or if they supply outdoor air directly.

Large building study.

Submitted by on Sat, 07/06/2013 - 16:02