The attic is often the most cost effective place to add insulation.  Save up to 50% in heating costs. The attic is the single most important area of any structure to insulate.  The fact that over 60% of all structural heat loss is through the roof.  With today's skyrocketing energy costs, homeowners more than ever are seeking energy saving home improvements such as installing insulation.  Adding insulation can cut heating energy costs by as much as 50%, quickly offsetting the cost of installation.