The Toronto Chapter will be discussing acoustic changes to the Ontario Building Code (OBC) on October 8 at the Toronto Cricket Skating and Curling Club from 5:15 to 7 p.m.
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After sold-out sessions earlier this year, Ontario Woodworks announced the addition of two encore “Resources for Ontario Mid-Rise” workshops. The group published a new reference guide, Mid-rise Wood Construction in the Ontario Building Code (OBC) earlier this year and developed workshops based on the guide.
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Within the next two decades, Toronto expects its population to grow by 500,000; the city’s plan is to accommodate half of these new residents in mid-rise developments. In light of the fact mid-rises—defined as between four and 11 storeys—are still often seen as an uneconomical mode of development, the city’s plan may seem overly ambitious.
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It is an all-too-common tale: a job is finished, and it is time for the inspectors to show up and sign-off on the entire project. Unfortunately, they find the doors and hardware are not to code. This comes as a surprise. After all, the design team relied on the same code information used on its last building in Ontario and… this facility is in Québec, which has different requirements.
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Thermal mass is a substance’s ability to hold heat energy. It is related to density. A substance with high thermal mass stores a greater quantity of heat energy than one with low thermal mass, even if both are heated to the same temperature.
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From a purely economic perspective, the positive impact of a vegetative ‘green’ roofing assembly is measured in the long term—40 years or more. This means ensuring its performance and safety over an extended period is crucial. A green roof protects the underlying waterproofing membrane from the elements. Combined with a higher-quality membrane necessary to resist soil and plant forces, the result should be a longer roof lifecycle decades beyond a conventional system’s 20 to 25 years.
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