This Duct Cleaning and Insulation Coating project consists of contact H.E.P.A. vacuuming of the supply and return ductwork associated with RTU #35. This also includes cleaning RTU and all registers, grills, and diffusers. On this project we covered with plastic all areas under diffusers and areas where access openings are made. The customer Was responsible for putting smoke/fire alarm in (standby/test mode while work is being completed. Upon completion of cleaning DVCA coated interior of RTU #35 with Fiberlock Coating on areas where interior insulation shows signs of degradation.