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  • Moisture accumulation and dissipation in building envelope
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  • Essay:

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    "Every man gets a narrower and narrower field of knowledge in which he must be an expert in order to compete with other people. The specialist knows more and more about less and less and finally knows everything about nothing."-- Konrad Lorenz [click on any underline terms (hyperlink anchors) to view the topic:]

    Moisture accumulates and strored in building envelope can cause building envelope damage, some cases are Vancouver building problems, findings, etc. Excessive moisture accumulation in building material can cause condensation, molds and fungi.

    To achieve moisture control, one has to carry out hygrothermal research, find out theory and modelling and materials properties. By building simulation and experimental work on moisture in building envelope, we can evaluate the building envelope performance.

    The building codes and standards specifys the building envelope requirements. The current trend is to replaced the prescriptive codes with performance-based building codes and standards or objective-based codes (for Canadian initiatives)

    Building envelope types: EIFS, cavity wall, pressure equalized screen principle

    Wood being the moisture frequent construction material for residential house and has unrealized petentials in other building types. Wood frame houses and walls have been widely present in Canada. wood panel, wood, lumber, timber and wood: engineered products have been on the rise, esp. in US and Europe.

    Due to climate change and global warming as a result of greenhouse gas emissions, sustainability and environment have been receiving much attention. The green building materials, green building project and green buildings and sustainable building have become a trend. The environmental impacts and issues of buildings are studied by embodied energy and service life prediction methods.

    The focus of this sites is the publications, while the concepts serve as a subject (plus) cross link. Click on the links of above paragraphs or the links in the following tree of concepts, to goto the individual concepts.




    CRDBER, at CBS, BCEE, ENCS, Concordia,