Kalamazoo Mechanical participated in the construction of a 20,000 square foot library in Paw Paw, Michigan. This was a LEED-certified project in which duct cleanliness, indoor air quality, trash recycling and separation, and VOC emitting materials were all monitored. This project incorporated an under-floor air distribution system powered by two air handling units in mechanical rooms on opposite ends of the building. The under-floor system is designed to minimize noise in the library. The building is heated from a central hot water boiler. The boiler also feeds an underground snowmelt system for the front patio. This project is equipped with a fully integrated web-based temperature control system; allowing users to control the building’s climate from any desktop computer. Challenges included the complex paperwork required for LEED certification, as well as project management aspects of building commissioning and functional testing of the systems.