University of Louisville Equine Center Addition Energy Efficient/Sustainability Design Features Architectural The building is designed to meet United States Green Building Council’s LEED 2.2 Certified Requirements for New Construction and therefore complies with the State of Kentucky’s “High Performance Building” Standard Criteria. The exterior wall system with an R-19 insulation value was designed to exceed the ASHRAE 90.1 baseline energy performance requirements. Natural daylighting is provided to over 75% of the interior spaces which reduces the dependence on artificial lighting and provides occupants views to the outside. Windows are Aluminum curtainwall framing (thermal break construction) with dark bronze Low-E glazing (U-Value of .35 and Shading Coefficient of 52). Windows are shaded by exterior louvered sunscreens to reduce heat gain and glare. Windows are also shaded on the interior with operable roller shades to reduce heat gain and glare. Roof deck system consists of R20 insulation above the composite concrete and metal deck. The combination of a high R-value insulation and thermal mass properties of the concrete deck provide a superior energy efficient roof system. A vegetated “green roof” system will significantly reduce the amount of stormwater runoff, reduce the “heat island” effect, reduce heating and cooling loads for the building, and extend the life of the roof membrane. A raised paver deck system is utilized for the remainder of the main roof terrace. The pavers will have a reflectance rating above the SRI 78 rating required to meet the LEED requirements for a reflective roof material. The pavers provide a protective layer for the roofing membrane reduce the “heat island” effect, reduce the heating and cooling loads as well as extend the life of the roof membrane. The mechanical penthouse roof will have a white reflective modified bitumen roof to reduce “heat island” effect, and reduce heat gain. A landscaped rain garden is being used on the site to reduce stormwater runoff by returning rain water naturally to the aquifer rather than the storm sewer system. Native drought tolerant plants will be used in the rain garden. Building materials were selected to be regionally produced (within 500 miles) to reduce delivery travel distances and CO2 emissions. Building materials were selected based upon their recycled material content. A dedicated recycling room is being built on the first floor to facilitate recycling of materials. To enhance indoor air quality, low VOC emitting materials will be used for interior construction such as carpet, ceiling tile, paint, caulk, and casework. Mechanical The heating system using a 94% efficient condensing boiler. The heating water temperature is modulated inversely to the outside air temperature to prevent inefficient operation of the boiler. Each individual room with an exterior wall has radiant panel heating for direct heating and space temperature control. Heating can be done without air system. The air system is design for variable air volume constant temperature scheme to minimize fan air flow. The HVAC system is setup on an occupied/unoccupied schedule to minimum use of the HVAC system. Electrical Lighting is setup on a time schedule to turn off lights in unoccupied times. Lighting energy usage was designed to be 15% below the current energy code.