There's been some talk of the US adopting the more strigent European energy codes.
Just had my furnace serviced and got an earful of WTF's from technician.
Hers a quick break down:
It seems that if these codes are adopted and made mandatory,new construction as well as remodeling are going to take a big financial hit.
The newer codes,would in effect,put the costs of building a newer home and retrofitting ,above it's appraised value,forcing the HO do it for the good of all mankind and forcing him to take a loss when it is sold.
Also;
When retrofiting one new energy approved component into an existing home,other non complying components may have to be addressed to pass inspection.
New costs will be;
Approved energy efficient design .
The use of more expensive qualifying material/components
Costs for qualified energy inspections on final" as built "
Sombody say socialized construction Industry.
Seems there's a lot to consider here:
http://www.scribd.com/doc/9647797/Can-Building-Codes-Deliver-Energy-Efficiency