b'ROOF ALTERATIONSByfollowingthethreestepsoutlined above,thesweetspotoftheholistic approach is achieved (Figure 4).Holisticprovisionsforalterationsto existing commercial roofs for climate adap-tation are currently under development. To aid in the implementation of the provisions, anevaluationprotocoltoassessexisting roofs along with guidelines for destructive and non-destructive forensic investigations are also being developed in parallel.Works Cited1 Canadian Commission on Buildings and FireCodes, Guidelines for Application of Part 3of the National Building Code of Canada toWe have you insulated. Existing Buildings.2 C.C.o.B.a.F. Codes, Application of NBC Part 4Whatever your roofingof Division B for the Structural Evaluation and Upgrading of Existing Buildings, in Users Guide3 NBC Part 4 of Division B, 2015. application or timeline. A. Hansen, Applying Building Codes to Existing Buildings, 1984. Figure 4: The holistic approach for alteration to existing commercial roofs. 4 Canadian Commission on Buildings and FireCodes, Final ReportAlterations to Existing Buildings, 2020.5 B. Baskaran, D. Lefebvre, M. Chavez and S. Molleti,Good Codes vs. Durable RoofsWhich is theWe have you insulated. Missing Link? Where is the Sweet Spot? in RCI International Convention and Trade Show, 2019. Whatever your roofing application or timeline.We have you insulated. We have you insulated. Whatever your roofing Whatever your roofing application or timeline.application or timeline.Readily available in Ontario,Using proprietary software, we can provide positive slope to drain for PlastiSpan is used as theall types of layouts for new and re-roofing applications. PlastiSpan insulation component in manyinsulation may be used in either non-combustible or combustible roof assemblies. 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PlastiSpan Plasti-Fab helps create lasting communities by supplying Expanded Polystyrene (EPS) products to construction and civil Plasti-Fab helps create lasting communities by supplying Expanded Polystyrene (EPS) products to construction and civilwww.rcabc.orgl21insulation component in manyinsulation may be used in either non-combustible or combustible infrastructure projects. As the only vertically-integrated EPS company in North America, we are leading the industry with solutions that are healthy for people, communities, and the planet.infrastructure projects. As the only vertically-integrated EPS company in North America, we are leading the industry with roof assemblies. Whether built up,construction and is listed as the insulation component in a number of solutions that are healthy for people, communities, and the planet.single ply, modified bitumen orULC and Factory Mutual roof assemblies. plastifab.com Helping create lasting communities. TMstanding seam roofing systems,With manufacturing facilities in Kitchener and Ajax, and a Winnipeg we can meet design and deliveryfacility delivering to Thunder Bay and Northwestern Ontario, we haveTMplastifab.com Helping create lasting communities.timelines on projects of any scale.Ontario covered.Plasti-Fab helps create lasting communities by supplying Expanded Polystyrene (EPS) products to construction and civil infrastructure projects. As the only vertically-integrated EPS company in North America, we are leading the industry with solutions that are healthy for people, communities, and the planet.plastifab.com Helping create lasting communities. TM'