Standard residential construction in much of the country is 2x4 framing with fiberglass insulation, achieving a paltry R-10 or so in the walls. If insulation is installed at all on the foundation ...

Insulation is our No. 1 line of defense against high heating costs, and my favorite type of insulation is cellulose. Along with its effectiveness at slowing heat flow, cellulose insulation is a green ...