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Evaporative Roof Cooling - A Simple Solution to Cut Cooling Costs
Abstract
Since the "Energy Crisis" Evaporative Roof
Cooling Systems have gained increased acceptance
as a cost effective method to reduce the high cost
of air conditioning. Documented case histories in
retrofit installations show direct energy savings
and paybacks from twelve to thirty months.
The main operating cost of an Evaporative
Roof Cooling System is water. One thousand
gallons of water, completely evaporated, will
produce over 700 tons of cooling capability.
Water usage seldom averages over 100 gallons per
1000 ft^2 of roof area per day or 10 oz. of
water per 100 ft^2 every six minutes.
Roof Cooling Systems, when planned in new
construction, return 1-1/2 times the investment
the first year in equipment savings and operating
costs. Roof sprays are a low cost cooling
solution for warehouses, distribution centers and
light manufacturing or assembly areas with light
internal loads. See text "Flywheel Cooling."
Citation
Abernethy, D. (1985). Evaporative Roof Cooling - A Simple Solution to Cut Cooling Costs. Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu). Available electronically from https : / /hdl .handle .net /1969 .1 /6787.