Air pressure and building envelopes
Lstiburek, J., Pressnail, K. and Timusk, J.
2002 Journal of Thermal Envelope and Building Science, vol. 26, no. 1, pp. 53-91
Lstiburek, J., Pressnail, K. and Timusk, J., (2002), "Air pressure and building envelopes", Journal of Thermal Envelope and Building Science, vol. 26, no. 1, pp. 53-91.
Abstract:
Control of airflow is essential to several important performance aspects of the building system. Air carries moisture which impacts a material's long-term performance (serviceability) and structural integrity (durability), behavior in fire (smoke spread), indoor air quality (distribution of pollutants and microbial reservoirs) and thermal energy.
Typical case studies are presented to illustrate how each of the above characteristics is affected when unintended airflow occurs as a result of poor construction. In some cases, there was simply a lack of understanding of the consequences of ignoring potential leakage paths and the interaction of the mechanical conditioning systems with the building structure. Rehabilitation of a troubled building requires that these interactions be understood. In general, the approach to developing that understanding is not involved. |
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