Quote:
Originally Posted by AC_Hacker
Here's a technique that seldom gets used, intermittent spraying of water directly on the roof.
The cooling due to water spray is only part of the effect, but the real heat remover is the evaporation of the water. Intermittent spraying rather than continuous will give you the most bang for the buck.
Works great on a comp roof, not so good on a metal roof, because of run-off.
A misting hose is perfect, and watering timers with the ability to set intervals work wonders.
My gal used to suffer working in a country convenience store with a shed roof. Not much insulation, the owner was too cheap for A/C, so just huge fans.
She tried the idea and it dropped the temp inside the store 10 degrees F.
Happy gal.
Good idea.
-AC
|
This technique works WONDERFUL in low humidity areas, as do swamp coolers.
But, unfortunately, is a waste of water in my area. Humidity is WAY too high for either of those solutions to work. A swamp cooler would just dump humidity in the air here, with no cooling, and the water on the roof just makes the ground wet.
But, if in lower-humidity areas, both are excellent cooling solutions. IF you can use water like that (some areas are severely restricted in water use, or you do not have the water resources available, such as rain barrels/etc).