A. The Contractor must have a full-time service department with dedicated management and service personnel. B. All repairs shall perform according to industry standards, as identified in above document, as well as the various manufacturers’ printed requirements. C. All labor and material shall be under warranty for 1 year unless the manufacturer states otherwise for the material. D. Material is to be based on approved manufacturers process. Owner is tax exempt on materials as per Article 24 in the General Terms and Conditions. Bidders shall indicate on the proposal form the percentage mark-up which will be applied to the bidder’s cost on all material purchased under this contract. The Contractor’s invoice must include copies of actual material invoices from their suppliers to show proof of actual material costs. Also, the contractor shall itemize all materials on the invoice, then apply the percentage mark-up that is submitted in the bid proposal. Upon request by the Board’s representative, actual material cost shall be substantiated by the material distributor. It is the expectation of the Board that the successful bidder will use good purchasing practices in procuring the materials needed for Board projects. E. Contractor’s service personnel must be trained for repairs to various type roof systems, including but not limited to the following: • Built-up roof system-including asphalt and coal-tar • Modified bitumen roof systems-including hybrid systems with MB cap over BUR. • Shingles- including rigid slate, tile, three-tab, and architectural. • Metal- including architectural and structural, both standing seam and through fastened. • Single ply roof systems-including EPDM, PVC, TPO, CSPE, and others. • Roof-Coating-Acrylic Coating or Elastomeric.