b'Technical Articlebuildingsarenotthermallyandmulti-familybuildings insulated,theywilltypicallylargerthan4,645m 2 (49,998 require more energy to heat orsq. ft.) will begin reporting in cool. However, with appropri- 2026.InestablishingaBPS, ate roof insulation, the buildingVancouver joins a wider move-envelopeeffectivelyminimizesment of jurisdictions in North heat transfer and consequentlyAmericathataresupporting provides greater energy savings. climate goals while improving Roof retrofits in colder climatethe overall performance of theirzonescanreduceenergycon- building stock.sumption.Naturally,heating under-insulatedbuildingsinGovernment Initiatives to coldclimatestypicallycon- Support Changesumesmoreenergyandin- To take additional strides toward creases associated energy costs.energy and carbon emissions savings, Sidelining this challenge, inte- the Canadian government has devel-grating roofs with high-perfor- opedboldandimmediateactions mance insulation (i.e., polyisoto fight climate change and ensure with a high thermal resistance)a clean growth economy. Under the canbolsterthethermalper- CanadianNet-ZeroEmissionsAc-formance of the envelope andcountabilityAct and as part of the reduceenergyconsumption2030EmissionsReductionPlans, byasubstantialmargin.Forthe federal government is spearhead-instance,byaddingcode-con- ing the mission to minimize building gruentinsulationduringroofcarbonthroughforward-thinking, retrofits,astripmallinVan- science-based efforts.couvercansaveuptosixperAs Canadian specifiers know, one centonenergycosts,whereaspart of the approach is developing a strip mall in a much colderincreasingly stringent, performance-climate area such as Edmontonbasedmodelbuildingcodes.The can save up to 11 per cent onCanadianfederalgovernmentdoes energy costs. It is important tothis by proactively working with the note that more stringent enve- stakeholders within the building and lopeinsulationrequirementsconstruction industry, as well as lo-in colder climates contribute tocal governing bodies. These policies this increased savings potential. bring the codes for retrofitting exist-Roofreplacementssupport ing buildings into the spotlight.buildingperformancestan- Roof upgrades and replacements dardsandcarbonreductioncan seem resource-intensive to build-goals.Roofreplacementscaning owners. To ease their concerns be a cost-effective tool to helpand help drive high-impact renova-buildingstakeholdersreducetions,thefederalgovernmenthas their carbon footprint to meetlaidafoundationofprogressby Code-congruent roofemissionreductiongoalsandmobilizing funds and resources pro-insulation installedbuildingperformancestan- motinggreenconstructionmeth-above the deck in existingdards (BPS) by locking in ener- ods.Someprogramssuchasthe buildings can help save up togy savings at the time of replace- Deep Retrofit Accelerator Initiative 11 per cent on energy costs. ment. Adopting such practices(DRAI) and the Commercial Build-can help building owners com- ingRetrofitInitiativebyCanada ply with forward-thinking poli- Infrastructure Bank (CIB) cater to Increased Energy Savingscies such as the Annual Green- energy-efficiency-focusedretrofits house Gas and Energy Limits in Colder Climates and5 incommercialbuildings.Infact, LargerBuildings Bylaw,which was adopted bythe latter has already committed $2 the Vancouver City Council tobillion to cover the upfront costs on In addition to outlining potentialmeet the citys aggressive 2030commercial building retrofits.energy and cost savings through roofsustainability goals. Starting inNECBrequiresroofinsulation retrofits, the detailed study points2024, commercial buildings inand provides a prescriptive compli-to several nuances that can changeVancouverlargerthan9,290ance pathway for new construction the way Canadian building indus- m 2(99,996 sq. ft.) will have toopaque roof assembles, but it does trystakeholdersachieveenergysubmitanenergyandcarbonnot cover roof replacement projects savingsindifferentclimatezones.report(alsocalledabench- thatcansupportexistingbuilding Some of the key findings shed lightmarking report) to the City forpolicies and regulatory building per-on the relationship between energythe2023calendaryear.Dataformance standards. So, the respon-savings and colder climates, the sizecollected from the benchmark- sibility of delivering energy-efficient of the building footprint and build- ing reports, which will need tobuildingenvelopesfallswiththe ing peformance. be submitted annually for eachbuilding teams and specifiers. Relative energy savings tend tosubsequent calendar year, will Commercial and Residential Roofing be greater for larger buildings.be used to confirm complianceRoofing Retrofits for an Trinity Roofing Ltd. specializes in a variety of roofing applications and CommercialbuildingswithwithVancouversBPS.Com- Energy-Efficient Built waterproofing for residential, commercial and institutional buildings. largefootprintsspreadacrossmercialbuildingslargerthan one to two stories have a greater4,645m 2 (49,998sq.ft.)andEnvironmentPhone: 416-630-9213URL: www.trinitycanada.comroof-to-wallarearatiocom- multi-familybuildingslargerCanadian specifiers stand at the Fax: 416-630-1722 Email: info@trinitycanada.comparedtotheirhigh-risecoun- than 9,290 m 2(99,996 sq. ft.)forefront of transformation and can terparts. If the roofs on thesewillbeginreportingin2025,playapivotalroleaschangemak-22ONTARIO ROOFING NEWSISSUE 2 2024 THE ONLY SOURCE FOR PROFESSIONAL ICI ROOFING CONTRACTORS IN ONTARIO ORN'