Removed shingles from dead valley on back side of roof and inspected for bad wood. Installed modified granulated bitumen in dead valley. Removed shingles from 5"-6" flue collar on left side of roof. Installed Ice and Water Shield. Installed new 5"-6" flue collar and seal properly. Re-shingled properly. Replaced one wind damaged tab to the right of the center dormer. Properly sealed all repair areas, cleaned up, and hauled away all debris.