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Read more ›High Humidity Diagnostics
Mold growth on books at the Hillsborough County Regional Library prompted an investigation of the building envelope and air-conditioning system to pinpoint the causative factors and provide cost effective, energy efficient solutions. The main factors were found to be several small roof leaks, leakage of air into the return air plenum and air handlers, and high coil temperatures. The HVAC system was delivering less than half of it's rated dehumidification capacity. Corrective actions included replacement of one air handler, refurbishment of the other two air handlers, sealing of air leaks, a compressor replacement, and improved filtration.