Installing a metal roof on a storage attic? Keeping it light weight and reasonably cool?
What methods would you suggest for re-roofing in metal, for a storage attic?
Here zone 3c, heavy sun exposure on one side, solar panels to be added, Class A fire zone, earthquake zone, reasonably easy to air seal attic with no present insulation, 2″ dimensional x 5.5″ rafters.
What are the tradeoffs with insulation below the deck?
Insulation above the deck?
A cold roof arrangement with purlins and an air space?
There’s no desire to condition the space, just moderate summer heat gain without adding too much weight or cost. The building has no A/C and no need for it.
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