After receiving a very poor report from a home energy audit of our 63 year-old home, we broke throught the drywall to inspect the attic crawlspace. We found a 3 foot or so high space with R-19 fiberglass batts haphazardly placed between the roof rafters. This, combined with the fact that both the soffits and ridge vent are obstructed with the insulation and that the entire roof/soffit area is, as it turns out, very drafty, has made for very hot summers and cold winters on the second floor. We're unsure how to fix ths problem. Do we pull down the fiberglass from the rafters and attempt to install fiberglass to a thickness of R-60 or so? (Another issue is the fiberglass HVAC trunk and flexible ducts running through this space. We assume that these would require additional attention, especially in the colder months.) Or do we pull down the fiberglas and blow in cellulose? This seems like a good option as there are many spaces in the already cramped and awkward space that I am unable to reach. We could really use your advice. Please help us! Thanks in advance for your reply!!