High-humidity buildings in cold climates: a case history

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Journal titleASTM Special Technical Publication
Pages231238; # of pages: 8
Subjectdeterioration; building materials; hygrothermal control; condensation; corrosion; air leakages; masonry deteriorations; frost action; corrosion; air leakage; condensation; humidity; durability; building materials; Moisture performance; deterioration; materiau de construction; controle hygrothermique; condensation (physique); corrosion; penetration de l'air
AbstractThe masonry envelope over a steel structure in a 10-story building failed and had to be replaced after 17 years of service because of severe deterioration of some materials within the masonry walls. The building was designed for use as an office block but it was used for the display, servicing, and storage of art treasures for which the inside atmosphere was maintained at a temperature of 21 degrees C ( 70 degrees F) and 50 percent relative humidity the year round. The highly humidified air, in escaping through leakage paths in the building envelope, lost moisture by condensation which accumulated in and on the building materials. This led to the degradation of mortar, deterioration of masonry by frost action, and corrosion of metal ties and fasteners.
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AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number18636
NPARC number20331479
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Record identifier4680fc5c-7d9f-460f-acfc-c8e127b420e6
Record created2012-07-18
Record modified2016-05-09
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