b'TheCDDIexpressestheper-formance of a shingle in a holistic approach by considering the prop-ertysimportanceanditsfragility to weather shocks. The CDDI can also be used for the common under-standingofthehomeownerswith expected performance levels: bronze, silver and gold, as shown in Table 2.Concluding RemarksThis article presented a process to incorporate current and future pro-jected weather shock parameters into the experimental testing of building enclosurecomponentsinthelabo-ratory.Theevaluationofbuilding enclosurecomponentsandsystems basedonthedevelopedweather shock exposure is critical and will help us better understand the durability of thebuildingcomponentsandsys- Figure 3: Climate zone map of Canada 5and weather shock data.tems. A CDDI was developed based on the measured property data. The CDDI was used to express the perfor-mance in a holistic approach by tak-ing the asphalt shingle as an example. SuchpresentedCDDIprovideda better in-service performance predic-tion.Whileinstallationisacrucial factorinfluencingtheperformance of asphalt shingles, its impact will be accounted for in the development of the CDDI at a later stage.References1.Canadian Commission on Build-ingandFireCodes.2015.Na-tional Building Code of Canada. Ottawa,ON:NationalResearch Council ofCanada.2.CSAGroup.2021.Performance RequirementsforClimateRe-silienceofLowSlopeMembrane RoofingSystems.CSAA123.26- Figure 4: Daily weather shock protocol for Zone 6 for a dark-coloured roof covering.2021EDITIONUPDATE1. Mississauga, ON: Canadian Stan-dardsAssociation.3.Baskaran, B. and F. Shyti. 2021. A New Climate-Resilience Tool for theCommercialRoofingCom-munity. IIBEC Interface 39 (11): pp. 8-16.4.GovernmentofCanada.Wind-Roof Calculators on the Internet (Wind-RCI). Last modified April 5, 2023. nrc.canada.ca/en/research-development/products-services/software-applications/wind-roof-calculators-internet-wind-rci.5.Shyti, F., A. Gaur and B. Baskaran. A Weather Shocks Protocol to In-vestigate Building Envelope Com-ponentsforChangingClimate. PushingtheEnvelopeCanada (Spring 2023): pp. 13-15.6.Berdahl, P., H. Akbari, R. Levin-sonandW.A.Miller.2008. Weathering of Roofing MaterialsAn Overview. Construction and BuildingMaterials22(4):pp. 423-433.ORN THE ONLY SOURCE FOR PROFESSIONAL ICI ROOFING CONTRACTORS IN ONTARIO ONTARIO ROOFING NEWSISSUE 4 2024/2513'