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Old 05-10-2008, 08:31 PM   #14 (permalink)
Gregte
EcoModding Apprentice
 
Join Date: May 2008
Location: South Dakota
Posts: 117

GMC Sonoma - '94 GMC Sonoma
90 day: 36.97 mpg (US)
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Quote:
Originally Posted by bennelson View Post
Wow Gregte,

Mind sharing with us your house R-values? Must be something other than standard construction, right? Strawbale, earth-sheltered, something like that, right?
It is pretty much standard construction... stick house on a concrete foundation. It is just a small house (30' X 26') single level with a 4' crawl space under the entire house.

The exterior walls are framed with 2 rows of 2x4 studs instead of the standard 1 row of 2x6 studs. The two rows of studs are on 16" centers but the inner row is offset 8 inches from the outer row so there is no solid wood from inside wall surface to outside except around door and window frames.

Standard fiberglass batting insulation in between all studs for a total of 7 full inches of fiberglass (2x4's are of course 3.5 inches wide).
Six inches is fiberglass batting between floor joists.
I put 18 inches of blown cellulose insulation in the attic but it has settled somewhat over the years.

Only three small windows (24"x36") in the whole house. Each of the two doors has a small window (9"x9").

It is impossible to know for sure but I suspect that the small amount of glass is the greatest energy saver.

Oh, I am single so there is only me going in and out the doors, using the fridge, taking a shower, cooking food, etc. I imagine that must make a considerable difference compared to a standard sized family.
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