Roofs and walls at sun absorb heat and irradiate it later inside the home. Louvers just block light inside but can not save from having a roof too hot.
Houses next trees instead are shadowed some hours a day, they are more fresh inside and heat less, so are much cheaper to keep at habitable temperatures in hot areas.
Trees are also great blocking street noise and removing contamination.
We just can not remove plants from cities without suffering negative collateral effects
Re:California Is Built to Burn
by throw0101a on Tuesday October 06, 2020 @01:45PM
(#24700445)
> Roofs and walls at sun absorb heat and irradiate it later inside the home.
Radiant barriers are a thing, especially in the Sun Belt. Plenty of products that have foil lining, but it can also be done as a stand-alone product: just add a small (rainscreen) air gap between the foil and the cladding.
This is what louvers and (eave) overhangs are for. You'd only need some trees for westerly windows once the sun gets closer to the horizon.
As an added benefit you can get some solar gain during the winter months if desired if you get the overhand length right (plenty of online calculators).