Ducts are the last thing you want to find in a vented attic as attics are the extreme opposite temperature of the air your ducts are trying to distribute to your rooms. For instance, in the summer, your ducts are carrying cold air to cool your home. When the conditioned air has to travel through the attic to get to the room, it has to pass through extreme heat, which warms up that air you paid to cool. Ducts have lots of joins, gaps, and holes. To fix this issue, Comfenergy seals and insulates the ducts with 1 inch of closed cell foam insulation. Now the air conditioner cools the air, it is delivered to your rooms without loss along the way.