Your home should always be comfortable, a clean attic and insulation is a good way to start. The home had blown-in insulation that was contaminated so no longer beneficial. We begun with cleaning all the debris and vacuuming any dirt. Then they sanitized this is important to get rid of all the bacteria. Once that was done they rodent proofed sealing any entry points rodents might have access to. After this they installed R-38 Batts Insulation. The attic is now up to CA building code.