DeeDee and I started outside. The info from the back deck did not make the cut and I let it slide when i did the blog summary of her story. So …
This is an Infrared image on one of my first new homes. The 2 foot cantilever bay clearly shows the effect of the shade. There is a 20° F difference in the temperature between shaded and unshaded areas of the wall. The high temperatures on the side of the house are in the area of 128° F. It is 97° F when I took this one.
Shade works. Building a new home with a south facing set of large windows. It is worth your money to have a deck with a roof, or pergola over it. If you have an existing home, the Pergola is a great idea.
Concepts like this have been recommending in my Home Energy Audits.