Current situation: Finished walk-up attic with fibreboard in varying states of disrepair over fiberglass/wool? batts(probably done in the
60's) in the walls and roof. Attic has no soffit vents only two gable vents at either end. Clapboard is nailed directly to wall studs. HVAC unit located in attic that supplies second floor and attic (currently kept closed). No return in attic. Roof is approx 5 years old. Want to rip the whole thing out and start over. How should I proceed? Need some ideas before talking to the contractor since most aren't used to the peculiarities of old house.