Specifications include, but are not limited to: 1. Contractor must remove existing supply/return air cover and supply diffuser. Contractor must remove any mold and thoroughly clean. If there is any rust on the exposed side of the vent grill, Contractor must repaint with match color. Contractor must clean all exposed ceiling tiles areas around the vent grill cover. 2. Contractor must remove all the existing flex ductwork. Any flex duct that has mold, Contractor must properly remove and dispose of. 3. Contractor must vacuum and clean all areas inside existing metal ductwork for both supply and return. All metal supply ductwork that is not insulated, Contractor must insulate. 4. Contractor must install new insulated flex ductwork to replace the noninsulated ductwork that was removed. 5. All ductwork must be properly sealed. 6. Contractor must clean and paint the outside of the duct work in the receiving/storage room with Fosters 40-20. 7. Any ceiling areas that must be removed to do the work on the ductwork must be replaced by the Contractor.