Sprinkling Water On Roof

Attached a garden hose and a water timer.

Sprinkling water on roof.

I can almost see the heat coming out of the shingles. Some of the water evaporates which increases the relative humidity while reducing temperatures in the microclimate. A cool roof is a roof designed to maintain a lower surface temperature in bright sunshine than a traditional roof source. I have this notion that i should hose water on my roof when it gets really hot outside like 100 degrees florida.

These systems provide cooling by spraying the water evaporates and cools the surface. First the concept of sprinklers on the roof is not new. In the face of an advancing wildfire a structure with a properly implemented firesmart program in combination with an operational exterior rooftop sprinkler system has a survival probability of above 90. When rooftop sprinklers are activated they spray water high up in the air which lands on the roof trees and other surfaces that are within range.

Excess water into the gutters and into a rain barrel that drip feeds the banana plants that just love lots of water. Department of energy the surface of a cool roof reflects more sunlight and releases more heat than a so called hot or dark roof. The roof saver sprinkler kit is an exterior fire prevention system designed to wet roofs gutters decks surrounding trees and shrubs making these fuels less susceptible to ignition. Haven t tried it because i don t want to look like a dweeb to my neighbors.

This has been attempted thousands of times during wildfires with very limited success. I ve done exactly this. Adjust sprinkler to end it s arc about three feet from the edge of the roof. These types of systems can also be set up to operate automatically either on a timer or connected to an automatic temperature sensor which triggers the system whenever it gets too hot.

This soaking of the roof and landscape also releases moisture into the air lowering ambient temperatures and increasing humidity levels. Roof sprinklers work by spraying water at predetermined intervals on a roof s surface. Hooked up a heavy duty impact sprinkler head on the center peak of the roof. The microclimate is the area right around where the sprinklers are located.

Roof top sprinkler systems fact. So if i sprinkle water on the roof it should get cooler. 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 principle is similar to the way the human body cools itself with perspiration.

Areas where water is in short supply. One study indicates that water use is around 100 gallons per day per 1000 sqft of roof area. While the term cool roof is sometimes used to describe any roofing surface that is cooler than a standard rooftop green certification. In your community particularly there are potential drawbacks that lead firesafe marin and local fire agencies to strongly discourage the practice.