I live in Denver. My 60 year old house is 1.5 stories. The upstairs has a highly sloped roof and definitely has insulation in the relatively narrow attic and I believe has insulation at the angled portions of the second story and in the hip walls. However, that insulation is not updated since 60 years ago and was found by a home energy audit to be insufficient.
I have to have my roof redone this year due to hail damage. The roof is asphalt shingles. Most of the attic space is tiny, like 4 feet tall. There are currently vents on the sides of the house, but no vents in the top nor any vents in the soffit. There is an attic-fan which draws are in through the vents on the side of the house - the fan runs on on a thermostat.
- Should I have the roofers take off all the shingles and plywood in the roof, redo the insulation in the attic/walls, and then reinstall the roof?
- If not, what strategy is the best in terms of cost, improved comfort, energy savings?
A picture may be worth a thousand words? Here's a cross-section focused on where we have insulation, of what quality, and where we have access.