A suggestion for renovation.

Recently with the advent of stronger energy code requirements, I have begun to suggest that you up the size of any new exterior wall components.  For example, we now hope you spring for the extra expense of a 2" x 6" over a 2" x 4" so you can insulate the wall with a higher u factor insulation ( r - ratting)  This will save you $$  in the long run while only slightly increasing the initial cost.  In many cases this is necessary to abide by the new energy codes anyway!  So ask your contractor about better insulating your home.