After evaluating the existing HVAC systems to determine causes for the system’s inability to maintain desirable environmental conditions, MMM recommended corrective action with construction schedules and estimated costs. A new exterior skin was design for the existing builiding and construction documents were prepared in a separate design package. MMM prepared annual energy analysis and life cycle cost analysis on multiple types of building materials, insulation and glass, and recommendations.

MMM prepared this analysis in-house on a PC-based Hourly Analysis Program (HAP 3.0). Existing HVAC equipment capacities were compared to the heating and cooling loads for each façade studied. By adding a slight amount of wall insulation, MMM was able to retain the central heating and cooling equipment that was otherwise undersized.