Check out this "How It's Made Video" and see for yourself:
James Hardie Siding (i.e. Hardieplank) is the best exterior cladding material (outside of true masonry) on the ... read more
I say insulation should be at the top of your list. I would also take a look at your water pumps.
Here's a few of the items we actuallyp ersonally suggest when going green: http://xtremegreenhomes.com ... read more