The house we are working on has underground asbestos transite air ducts with galvanized metal connections and elbows. The connections and elbows are heavily rusted and sand and debris are blowing throughout the customer’s home. We are going to clean all of the sand and debris out of the air ducts. Next, we are going to apply our Trenchless Cast mortar to all of the heavily rusted connections to give them a strong structure. Lastly, we are going to seal the air ducts with our Duct Armor product.