I have a A-frame with 2×6 construction.Currently have 50 year aluminum shingle roof with only fiberglass insolation. There is felt-like material between shingles and sheeting. The inside is tongue and grove.… I have a A-frame with 2×6 construction.Currently have 50 year aluminum shingle roof with only fiberglass insolation. There is felt-like material between shingles and sheeting. The inside is tongue and grove.…Read MoreGreenBuildingAdvisor

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