10/14/25 Cleaned all underground ductwork in preparation for spin cast mortar. Applied trenchless spincast mortar to all underground connections and elbows. Repaired register vents and furnace box with hydraulic cement. 10/15/25 Applied first application of duct armor to 99’ of 6’’ air ducts. 10/22/25 Applied second application of duct armor to 99’ of 6” air ducts.