Los Angeles requires 'cool roofs' on new homes
— By Tyler Falk on December 20, 2013, 10:19 AM PST
I just love it when someone throws in the estimated cost savings for consumers, if you look at past trends in energy
conservation, you will likely find that the cost of energy goes up as much if not more than the percentage of the energy
conserved. Bottom line being that utility companies are not going to lose revenue because you're using less energy. Net
benefit they produce less power and you pay the same amount.
Tyler, This is a great idea, but do we really need the government to enforce this? From my perspective, if I am going to get the roof on my house re-done and the roofer, or the building supplier if I was doing it myself, says "hey you will save money if you use a lighter colored roof in the following ways ..." I would be all in. It would seem that an informational display at Lowe's or other building suppliers would be enough to convince people. Many commercial buildings in my areas already use black tar to seal the roof with a layer of light colored stones on top with also solves this problem.
Last time I had to re-roof my house, I wanted white shingles instead of black, and my wife and the roofer both said I wouldn't like it. We ended up with a fairly light brown.
The roofer had a good point, though, saying that the white would end up with a lot of dark streaks due to particulates being washed out of the air during rainstorms.
In my current neighborhood, I suspect that the homeowners' association would nix it.
But here in the Houston area the attic is incredibly hot in the summer, and we really aren't concerned about what little cold we get.
My parents' house, built in 1955, originally had a white rock roof! I suppose these were granite chips, but I don't know for sure. Seems like an idea whose time should return.
Also, I can only get $600 ROI annually on my A/C bill by going with a reflective roof. The dark roof helps heat the house in the winter. Decisions, decisions.