Marathon Petroleum Company was interested in improving the heating, ventilation, air conditioning (HVAC) and electrical systems serving its Refining Analysis and Development (RAD) and Control Laboratories at its Catlettsburg Refining facility in Catlettsburg, Kentucky. The laboratory buildings needed to be divided into chemical and fire control areas and IMEG designed modifications to the existing walls to create the two 1-hour rated control areas needed in the building. The exhaust system serving the RAD laboratories was redesigned to provide Marathon full redundancy with a manifolded exhaust system to meet reliability goals of the project. IMEG’s design resulted in a coordinated HVAC and exhaust system that met static pressure requirements as well as appropriate heating and cooling to maintain desired temperature in the labs. IMEG also developed a phased approach for replacing existing electric panels within the labs to provide needed flexibility with power requirements without causing major disruptions during construction.