a. Contractor shall remove all existing asphalt shingles, underlayment, and other roofing components down to the existing wood substrate. Unsuitable substrate shall be properly replaced. b. Contractor shall furnish and properly install specified expansion joint at designated location. c. Contractor shall furnish and properly install the specified underlayment and ice and water shield over the wood substrate in all areas as per drawing layout. d. Contractor shall furnish and properly install the specified asphalt shingle roof system and include all components. e. Contractor shall furnish and properly install all new sheet metal components. f. Contractor shall furnish and properly install specified snow guard system as per layout. g. Contractor shall furnish and properly install specified solar powered ventilators. h. Contractor shall remove the existing gutters and downspouts and shall furnish and install new specified gutters and downspouts at all locations indicated on the roof plans. This is to include new gutters and downspouts on the Cupola. i. Contractor shall provide manufacturer and Contractor warranties as required.