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S E P T E M B E R 2 0 2 2 | 29 Curtain Wall & Window Wall P H OTO G R A P H Y CO U RT E S Y R J C EN G I N EER S "We are definitely getting more involved with the existing building stock and refurbishments to help them attain better energy efficiency. There has been a slight lag due to current market issues and pricing, and some projects have even been put on hold as pricing in some cases has gone up 30 percent. Our clients are tending to bite off smaller chunks as they figure this out," explains Chun. As for the future, Chun is excited about the innovation happening due to supply chain issues and costs, and how local suppliers are now in the limelight, which is a positive for the local market. As Chun mentioned, over the past few years there has also been increas- ing focus on the inefficiencies of curtain and window wall systems on existing buildings and how to remedy those challenges. One company tackling that head on is LiteZone Glass Inc.'s whose insulating glass units (IGU's) can be used to upgrade the window or curtain wall system in buildings to dramatically improve comfort levels, reduce building energy costs, and greatly increase the life of the system. In addition, any worn out under window perimeter heating system can often be removed, and the extra floor space reclaimed for more useful purposes. By optimizing a project to use LiteZone, the cost reductions in mechanical system upgrades can result in a much more economic building renovation project. In fact, an outdated and energy inefficient curtain wall can be economically renewed with LiteZone L0679 glass units to achieve R17G vision areas and ~R24 spandrel areas. 609 Granville Pacific Centre Offices, Vancouver, B.C. R-7.1 VISION GLASS SLAB BYPASS R-8.1 SPANDREL R-19.4

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