Duct & Vent Cleaning of America, Inc Contact HEPA vacuumed all the existing ductwork identified on walk through. We then removed the open cell fiberglass duct liner within the ductwork that was identified as degraded. To prepare the surface for installation of a closed cell duct liner we wire brushed and prepped the surfaces by grinding out the glue. We then replaced the open cell insulation by installing 3/4" Armaflex closed cell duct liner to ensure the acoustical goals of the system were being met.
