2019-06-05-PBC-min - Laserfiche WebLink

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Lexington Sustainable Design Goals and Project Checklist Status • The project will be designed with respect to the sustainable design goals established by the Town of Lexington (See attached). The meeting referred to the Lexington, MA Integrated Building Design and Construction Policy Evaluation Sheet, or Project Checklist. • Below please find a summary of significant discussions regarding specific sustainability goals. Some of these items may require follow up from various team members. LOCATION AND TRASNPORTATION LEED LTc7: Green Vehicles The project team discussed the possibility of including charging stations to accommodate impending electric fleet vehicles. The team discussed that electric fleet vehicle charging may be a future requirement and the project can save by installing the Infrastucture for them now. SUSTAINABLE SITES LEED SSc4: Rainwater Management The project will utilize a sub-surface infiltration system that will meet local stormwater management requirements as well as the LEED v4 requirements. LEED SSc5: Heat Island Reduction The project plans to install asphalt shingles in order to be compatible with the surrounding structures. The project team is considering installing a solar canopy in the parking lot as well as other alternatives like on the roof of the Cary Memorial Building, which would reduce the heat island effect. It is too early to perform calculations to determine the size of the PV that would be needed in order to meet the credit requirements. WATER EFFICIENCY LEED WEp1 and WEc1: Outdoor Water Use Reduction The PBC is interested in designing the project to be in line with this credit intent to reduce outdoor water use by planting native and adaptive species that do not require permanent irrigation. The LEED project boundary within the site has not been established yet and can be drawn to include landscape that the project team intends to reduce irrigation for. LEED WEc3: Cooling Tower The project may install a cooling tower. What benefit does the cooling tower provide? o Action item: Tecton Architects to review LEED requirements for cooling tower design. ENERGY AND ATMOSPHERE L Lex 1 and LEED EAp1 and EAc1: Fundamental and Enhanced Commissioning and Verification The project team intends to conduct Fundamental Commissioning, HVAC Commissioning, and Building Envelope Commissioning in accordance with LEED v4 criteria. Monitoring-Based Commissioning was discussed in order to monitor and track energy performance over the operational life of the building. Monitoring-Based Commissioning is only useful if the project intends to use the data to understand the actual performance of the building. Lexington may have a Sustainability Coordinator. One of the roles of the Sustainability Coordinator wouldl be to review the commissioning documents. If the project pursues Monitoring-Based Commissioning, then the Sustainability Coordinator could also review the monitoring and trend data. Monitoring Based Commissioning is helpful for predicting potential failures in the system and can save the project in the long term. DOAS:translate into words PBC Meeting 06.05.19 2