2 ms·
In the Southwest it is common to use roof-top heat exchangers to warm backyard pools, but the same houses have A\C and may have solar as well (which incidentall
by killjoywashere 8y ago
In the Southwest it is common to use roof-top heat exchangers to warm backyard pools, but the same houses have A\C and may have solar as well (which incidentally shades a section of the roof), so I suspect “watering your roof” would not be terribly effective. Worth a try though.
- ams6110 8y agoWatering the roof should be quite effective, but rather wasteful if you are using utility/drinking water. If you have a way to collect rainwater, and recapture what runs off of the roof, it could be effective, but evaporative losses will be large.