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The 2019 Greenest School in Canada is W. D. Ferris Elementary
CanBIM Announces 5th Annual Innovation Spotlight Awards Winners
Building, December/January Issue
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Building, June/July 2019 Issue
Building, April/May 2019 Issue
This comment is in regard to the article by Doug Kramer titled “Spray Foam Insulation, Evolved” . With the phase out of HFC blowing agents and conversion to HFO blowing agents (effective January 1, 2021 in Canada) closed cell spray foam as well as other foams such as XPS (extruded polystyrene insulation) that use HFC will be affected. Using HFO blowing agents increases the sustainability of closed cell foam significantly resulting in it having a carbon footprint of less than 50% of semi rigid mineral fibre. Physical properties and areas of use remain unchanged however the R value will typically be reduced by 7 to 12% compared to HFC foams. This is based on the R value being measured in accordance with the Canadian standards CAN/ULC S705.1 and the LTTR test method CAN/ULC S770. Due to the elimination of HFC foams and the R value reduction it is important for specifiers to start including HFO foams only in their specs immediately to avoid any last minute changes during construction. BASF WALLTITE CM01 is an HFO foam that meets all Canadian Standards and is available across Canada from our certified installers.
If you are interested in architecture and construction then I would suggest you subscribe to this magazine. It has so much information that you can know about contracting buildings.
This type of construction can only be handled by expert spray foam companies. The size of project requires pollution control permit from the government before starting the work. Great informative content.
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