The building’s insulation exceeds Standard 90.1 requirements with R-30 walls and R-40 roof for refrigerated warehouse and R-20 walls and R-30 roof for the two other sections. The warehouse also has a reflective white roof. The office space has a garden roof to minimize solar heat gain through the roof.
The entire warehouse has T5 HO lamps with motion detectors and natural light detector. Natural lightning is possible near walls where high insulated (R- 7.5) translucent windows are installed.
The main heating source for the offices and common spaces comes from heat recovery of the warehouse chillers. Heat is then distributed by radiant floor. Backup gas boiler sized for 100% of the heating loads are present also, in case of the heating is needed when free-cooling occurs. Radiant floor contributes to reduce heating load.
Offices and common spaces cooling are provided by the warehouse chillers. However, a different compression ratio is used since the cold water temperature need is higher than the warehouse. Because the chiller has been designed to be highly efficient for the warehouse application, the efficiency is better for the other spaces.
The warehouse cooling system uses a secondary fluid (glycol) for cooling distribution and
can operate in free cooling when the outdoor temperature is below <-xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" />-12°C by stopping the compressors.
The warehouse has fresh air supply with CO2 sensors and has an energy recovery ventilator.
Based on DOE-2 simulation the building energy consumption is 62% lower