What could be more fundamental than the air we breathe? As it is invisible and a part of everyday life, people can sometimes take the quality of air for granted. Indoor air in Canadian buildings may contain hundreds of volatile organic compounds (VOCs)—a diverse group of chemicals emitted as a gas at room temperature that often reach higher concentrations than outdoors.
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Last spring, several members of Group2 Architecture Interior Design, revisited their plans for an office space in Edmonton after hearing a wallboard that absorbs one of the highest concentrations of volatile organic compounds (VOCs)—formaldehyde. The firm’s new lease was for a 478-m2 (5150-sf) top floor plate in a nine-storey building. They were to completely remodel the space, adding new framework and drywall, among other things.
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Understanding the limitations of using roof coatings in the fall and winter can fine-tune the way Canadian contractors treat the options and variables involved. Some product types are much more robust in inclement weather, and there are various options available for project teams.
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Moisture infiltration can cause serious damage within a structure. When water in liquid form is present, the impact can be catastrophic—the structure can become uninhabitable. There are various methods used to address water penetration within a structure, and two of the most common techniques are waterproofing and dampproofing. Both these options can prevent moisture, but waterproofing will resist the passage of water under hydrostatic head pressure. In other words, it stops liquid water penetration when the water is in contact with the waterproofing material. In comparison, dampproofing only resists water in the absence of this hydrostatic pressure.
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For years, the phrase ‘volatile organic compounds (VOCs)’ has been associated with issues such as smog, greenhouse gases (GHGs), air pollution, and ozone layer depletion. Still, many Canadian design professionals are not overly familiar with the specific regulations limiting VOC release into the atmosphere. Even more problematically, many are not sure how these rules have an impact on common building products.
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Designing for high indoor air quality (IAQ) in both new construction and remodelling projects has become a primary objective of design professionals. This concern is due to the substantial impact indoor air has on the health and comfort of building occupants; recent studies compound the issue, revealing how much time the average person actually spends inside of homes and buildings.
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