Roof Water Cooling System

One study indicates that water use is around 100 gallons per day per 1000 sqft of roof area.

Roof water cooling system.

The cool mist created through the system keeps your roof cool and lowers the heat absorption. Dark surfaces also contribute to the urban heat island effect. This effect creates an effect equivalent of r 7 roof insulation during the day. The principle is similar to the way the human body cools itself with perspiration.

A cool roof reflects the sun s energy reducing rooftop temperatures. This cooling reverses the heat flow through the roof. As the water evaporates it cools the roof and helps to lower the temperature of the roof tiles and the ceiling cavity beneath it. The water evaporates and cools the surface.

Heat is now transferred out of the building through the roof. They are simple and appear to be effective but would not be a good choice in areas where water is in short supply. David s north carolina system. Roof sprinklers work by spraying water at predetermined intervals on a roof s surface.

John estimates that his systems saves about 5kwh per day on his cooling bill. At its lowest tech a roof misting system can be little more than a garden hose set to the mist setting and aimed across the roof. Also called an evaporative cooling system a roof misting system lowers surface temperatures by spraying an extremely small amount of water across the roof allowing the water to cool the roof as it evaporates. The built in thermostat monitors the roof temperature constantly and activates mist when needed this helps keep your roof temperature normal and saves water as well.

These systems provide cooling by spraying water on the roof surface.