b'BLUE-GREEN ROOF SYSTEMS PHASES 1 AND 2RESULTS and highest temperatures in two years.corresponds to the peak and decline Figure 3 shows the narrow band ofof the BGR evapotranspiration. When The analysis is based on data collectedtemperatures maintained by the BGRthe soil dries, the plants begin to wilt. during two full years, 2020 and 2021.plants compared to the other 2020 was close to a typical climate It focuses on the summer periods toroof surfaces. year in Vancouver, whereas 2021 was understand the roofs responses toFigure 4 shows the evapotranspirationatypical due to the heat dome event that warm weather under limited rainfall.(ET) rates of the BGR and the GR.occurred in June. For this reason, in Figure 3 shows the extreme monthlyIn Figures 3 and Figure 4, it can be2021, the BGR presented peak evapo-surface temperatures for the four roofs,appreciated that the dramatic increasetranspiration in June, faster water deple-as well as the monthly ambient lowestin roof surface temperature of the BGRtion and warmer surface temperatures.FIGURE 3: EXTREME MONTHLY LOWEST AND HIGHEST ROOF SURFACE TEMPERATURES OF THE FOUR ROOFS.FIGURE 4: EVAPOTRANSPIRATION DERIVED FROM WATER BALANCES FOR THE BGR AND THE GR.STRENGTHEN YOUR VOICEREACH ASSOCIATION MEMBERS AND INDUSTRY PARTNERS ACROSS STRATEGIES FOR THETHE COUNTRY WITH TAILORED BUILT ENVIRONMENT COMMUNICATIONS SOLUTIONSCOMPLEX QUESTIONS ANSWERED.Optimize the quality, value, and performance of your projects and facilities with Rimkus.rimkus.comConsultants. Experts. Innovators. 604-295-8070 Robert Thompson, Senior Vice President robertt@mediaedge.ca 647-494-422918 BCBEC ELEMENTSA BCBEC PUBLICATION'