A reader challenged me on my assumption that Clayton "ehome" -- their new inexpensive single wide with some green features not to be confused with the ihouse -- comes with 2 x 4" sidewall construction. I assumed this because the ehome website lists the standard insulation as R11, 11, 21. That is, R11 in the floor and sidewalls and R21 in the roof. That is invariably the insulation offered with a 2 x 4" sidewall home, and the cheapest single wide homes made. By no stretch is that level of insulation "green" or energy saving. In my initial post about the ehome I recommended that anyone considering the ehome ask about the possibility of upgrading both the side wall construction to 2 x 6" and better insulation.
I called Clayton this morning to straighten it out. I was told that in areas where the code required it, like Northern California and Oregon, the ehome is made with 2 x 6" sidewalls. Beth also said that in areas where the house is built to 2 x 4" sidewalls, like New Mexico, you can ask a dealer to upgrade to 2 x 6" sidewalls AND upgrade to insulation above the minimal R11, 11, 21.
If anyone reads something on my blog that conflicts with information they got from a dealer, please write in, I will try to straighten it out.