I posted several months ago about help insulating an attic that is partly refinished. We have ice dams on the south side of the house and it makes for treacherous walking. Our house is in WI and it's 100 yrs. old. We have 2 rooms in the attic that were not refinished and only have insulation underneath the floorboards. We use these rooms for storage but we have frost on the nails and on the wood underneath the shingles. What to do?