Sprinkler On Roof To Cool House

The majority of time older homes do not have enough roof vents to help cool the attic in summer.

Sprinkler on roof to cool house. 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. A rooftop sprinkler system ember s guard is adapted to protect homes from falling embers in the case of a wildfire or bushfire. One study indicates that water use is around 100 gallons per day per 1000 sqft of roof area. Excess water into the gutters and into a rain barrel that drip feeds the banana plants that just love lots of water.

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. Areas where water is in short supply. Yes you can spray your roof to help cool it down but that will only cool the shingles for a short time and be a large waste of water. Local fire agencies agree that the only time a sprinkler system on the roof may be advisable is if you have a combustible wood roof.

Firesafe marin recommends that you replace any wood shake roof with a fire sesistant type a roof assembly but until that happens your house is the rare case a sprinkler might be helpful. Inside of the house is 10 to 15 degrees cooler than before i started spraying. I ran the old fashioned fan type sprinkler on the flat roof of a building i rented for 10 12 years to cool the roof and reduce radiant heat that transfered into the building. This soaking of the roof and landscape also releases moisture into the air lowering ambient temperatures and increasing humidity levels.

Adjust sprinkler to end it s arc about three feet from the edge of the roof. The hoses are connected to a sprinkler timer and come on six times during the hottest. Water is sprayed for 10 minutes every hour to thoroughly soak the roof. Turned it on about 5 minutes every 45 minutes to an hour on hot sunny days.

There should be 1 square foot of vent for every 300 square feet of floor space. These systems provide cooling by spraying the water evaporates and cools the surface.