Televised underground air ducts. Ducts were metal and heavily rusted. A lot of sand in the ducts. Bottom of plenum deteriorated. Recommend applying spin cast Mortar to the entire system. Some areas may need patch liners
Televised ducts under a slab floor, revealing concrete ducts with heavily rusted metal fittings. Recommended using spin cast mortaring to restore the metal fittings' integrity. Followed by applying Duct Armor duct lining material for a durable and protective coating. This process will ensure the ducts are sealed and protected from further corrosion, enhancing the overall efficiency and longevity of the duct system.