What causes floor under tub and outside wall to get wet?

Floor under a tub and outside walls can get wet due to several factors, including Plumbing leaks, condensation, or improper sealing around the tub. A leaky drain or supply line can result in water pooling underneath. Additionally, if the tub is not properly caulked, water may seep out during use. Outside walls may become damp due to poor insulation, allowing moisture from the air to condense, or from external sources such as rainwater intrusion.