Specifications include, but are not limited to: Removal and disposal of the existing asphalt shingle roofing. Inspect all sheeting and replace any damaged sheeting. Because it is impossible to know how much sheeting is worn or damaged, each bid should contain a separate line item for the cost associated to remove and replace sheeting per square foot. All bids must include ice and water shield on all eaves (6’ minimum) and valleys (3’ minimum). Feltex, or equivalent, throughout the field. Shingles must be Owens Corning Duration Lifetime shingles, or equivalent. Bids must include all flashings (drip metal and pipe flashings). Bids must include all proper roof ventilation. Bids must include the bidders Labor Warranty.