Uponor faces multiple lawsuits alleging that its AquaPEX pipes, sold between 2010 and 2021, are defective in ways that may contribute to moisture intrusion and mold growth on walls and other structural surfaces. Homeowners and building occupants are at the center of these claims, as hidden pipe failures can create the persistent damp conditions mold requires to establish and spread. Those living or working in affected structures should be aware that unexplained wall discoloration or musty odors may warrant a professional inspection of both plumbing integrity and indoor air quality.