Issue link: http://digital.canadawide.com/i/1511965
D E C E M B E R 2 0 2 3 | 23 Insulation P H OTO G R A P H Y CO U RT E S Y CU FC A CUFCA is also well known in the construction industry for warning about radon gas accumulation in basements (the second leading cause of lung cancer in Canada), and it was the first organization in Canada to test a radon control system with a two pound closed cell medium density spray foam. "Radon contin- ues to be a hazard, but now CUFCA Certified Contractors can create a gas-proof basement using our tested and ULC evaluated foam system Grizzly Gold HFO by CUSE," Cole says. The Grizzly Gold HFO can be a single application process that provides an all-in-one solution of air barrier, moisture barrier, soil gas barrier, plus a high R-value thermal barrier. Once installed, the SPF forms a single monolithic sheet upon which construction crews can walk and use wheelbarrows without any damage to the underlying radon and vapour barrier spray foam. This far exceeds the performance of mechanically sealed sheet or tile alternatives. As always, insulation is playing a huge role as advanced construction stan- dards continue to become more highly sought in Canada. The Rockwool Group is the world's leading manufacturer of stone wool insulation, in demand globally in residential, commercial, and industrial projects, and in Canada the new University of Victoria Student Housing and Dining project is a case study of how stone wool can be used to achieve the highest degree of performance standards. That's because the 333,681-square-foot, mixed-used complex was built to Passive House standards and intended to achieve rigorous energy targets. The project incorporates eight inches of Cavityrock continuous exterior insula- tion into the exterior wall system to serve a number of important functions. Primarily, the stone wool meets the need for high insulation levels, which pas- sively work to maintain consistent temperatures inside the building, providing occupants with reliable thermal comfort, while reducing demand on energy- reliant mechanical systems. Stone wool also served to address long-term resilience and durability, par- ticularly as the buildings will need to withstand extreme weather events. Also, because stone wool insulation is vapour permeable and allows any moisture to dry to the outside, it will help keep the wall system dry, mitigating any potential moisture-related issues over the life of the building. Additionally, stone wool insulation also satisfied the requirement for a fire-rated wall assembly where an exterior canopy was incorporated to create a covered loading area on one of the buildings. Finally, Johns Manville manufactures premium-quality insulation, com- mercial roofing and fibres and nonwovens for commercial, industrial, and residential applications. Recently, the company expanded its industrial insula- tion portfolio with a product that addresses corrosion under insulation (CUI). Johns Manville Cross-Flo Jacketing is an innovation for ambient and hot systems, designed to help mitigate the potential for CUI. It has an embossed pattern engineered to promote cross-directional flow, providing a path for unwanted liquid to reach the low point of a system and exit the jacketing through a weep hole or drainage port more rapidly. In addition to numerous technical benefits, Cross-Flo Jacketing has a distinc- tive aesthetic appearance and comes standard with a three-millimetre-thick polyfilm moisture barrier, heat laminated to the interior surface to provide additional protection against corrosion. A Grizzly Gold HFO closed cell medium density spray foam.