Evaporative Roof Cooling - A Simple Solution to Cut Cooling Costs

摘要

Since the "Energy Crisis" Evaporative RoofCooling Systems have gained increased acceptanceas a cost effective method to reduce the high costof air conditioning. Documented case histories inretrofit installations show direct energy savingsand paybacks from twelve to thirty months.The main operating cost of an EvaporativeRoof Cooling System is water. One thousandgallons of water, completely evaporated, willproduce over 700 tons of cooling capability.Water usage seldom averages over 100 gallons per1000 ft^2 of roof area per day or 10 oz. ofwater per 100 ft^2 every six minutes.Roof Cooling Systems, when planned in newconstruction, return 1-1/2 times the investmentthe first year in equipment savings and operatingcosts. Roof sprays are a low cost coolingsolution for warehouses, distribution centers andlight manufacturing or assembly areas with lightinternal loads. See text "Flywheel Cooling."