1/10/25 Milled cardboard airducts with picote. Cleaned all underground duct work in preparation of trenchless spincast mortar. 1/16/25 Applied trenchless spincast mortar to all cardboard airducts. Repaired and rebuilt furnace box and all register vents with trenchless spincast mortar. 1/21/25 Applied first application of duct armor to all underground ductwork and furnace box. 1/30/25 Applied second application of duct armor to all underground ductwork and furnace box.