Trenchless solution sought for underground air duct system
Problem: An upscale Laguna Beach oceanfront home was experiencing severe infiltration in its underground air duct system. Shifting ground near the Pacific stressed the buried ductwork connection joints, allowing moisture and sand to intrude. The general contractor sought a trenchless solution as traditional replacement would have required demolishing the concrete slab, causing major interior disruption and taking months to complete.Solution: Flow-Liner’s CIP-Duct HVAC lining system was chosen for the trenchless rehabilitation. Ambient-cure liners were installed overnight to restore the ducts without demolition. The scope included two 18-inch ducts at approximately 90 feet each,
