Cool your home for free with these simple acts

Light colored exterior walls—exposed to full sun—are over 25˚F (˚C) cooler than darker colored walls; while shaded walls (whatever the color) are over 45˚F (˚C) degrees cooler than walls exposed to the full sun.

I discovered this by comparing the temperature of different colored west-facing walls with a hand-held infrared thermometer on a summer afternoon when the ambient temperature was 102˚F (38˚C) in Tucson, Arizona, USA.

I also compare the difference of temperature of walls in full-sun to those in the shade, so you can make informed choices in the color of your building, and where you can more wisely utilize shading strategies to FREELY cool you in summer and warm you in winter.

Keep in mind that LIVING shade from vegetation ALSO gives you air, food, wildlife and livestock habitat, carbon sequestration, and seed for more. Non-living shade doesn't come close to all those cumulative benefits.

Filmed August 2023

CHAPTERS
0:00 Intro
0:18 Ambient temperature is 102˚F (38˚C) at 5pm on summer day in Tucson, AZ
0:48 Temperature on brown west-facing wall is 151˚F (66˚C), that's 49˚F (28˚C) hotter than ambient temperature
0:56 Temperature on white west-facing wall is 124˚F (51˚C), that's 22˚F (13˚C) hotter than ambient temperature
1:23 Temperature on shaded west-facing wall is 105˚F (40˚C), that's 46˚F (26˚C) cooler than brown wall in sun, and 19˚F (11˚C) cooler than white wall in sun
1:47 More resources

I use a Fluke 62 MAX+ Handheld Infrared Laser Thermometer to take the temperature readings.
https://www.fluke.com/en-us/product/t...


Get more info on free, passive summer cooling—and winter heating—at:
https://www.harvestingrainwater.com/s...
and
https://www.harvestingrainwater.com/

where you can buy the new full-color editions of Brad's award-winning books, "Rainwater Harvesting for Drylands and Beyond" at deep discount direct from Brad at:
https://www.harvestingrainwater.com/s...



For more videos that expand on this one subscribe to this channel at:
https://www.youtube.com/c/HarvestingR...


For more on such neighborhood efforts see
https://dunbarspringneighborhoodfores...


See the video Rain-Irrigated LIVING Air Conditioners Shading and Cooling Neighborhood Streets by 38˚F or 21˚C at:
   • This Rain-Powered AC Is Cooling Down The S...  

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