A home loses approximately 25% of its heat through the roof of the building. Attic insulation is traditionally designed to prevent heat loss but not to protect from wind and draft. Consequently drafts and moisture damage the insulation over time, forcing gaps and damaging the material itself. Air tightness (link) used in conjunction with insulation will efficiently insulate your home through your attic, reducing your heating costs by (typically) over 22%. Grant aid (link to grants) is available for attic insulation. Contact EnergySolve for more info.