Specifications include, but are not limited to: The contractor will furnish all equipment, materials and labor to complete the site work relating to this project and will demolish and dispose of all material relating to the deconstruction of the existing fixtures required to complete improvements. Materials will be used, recycled or disposed of as applicable All unit installation and equipment shall not be proprietary as all information relating to the equipment and installation upon completion shall become property of the Navaj Nation to include any software or codes used for maintenance or repair of each system Through training shall be furnished to the DALTCS site Personnel by the contractor on all installed equipment and material upon completion of each HVAC system installation with follow up training as requested by DALTCS. The contractor will be responsible for construction related clean up and debris disposal. Contractors will also isolate work areas to minimize impact to non-work-related clean space; however, some dust and debris should be expected. Contractor will supply all nails, screws, adhesive, caulking, roofing curb, gas regulation, cement, vents, deflectors, fabrication of the new ducts, tape and cement to seal all joints and penetration, roof caps, electrical wires, thermostats, cords and categorical part required to complete this project. All leaks that occur after initial installation will be the responsibility of the installer for a period of five years. All building penetration must be sealed tight to avoid leaks and air infiltration.