Increased humidity is a primary concern when considering interior painting during wet weather. Higher moisture levels in the air can significantly impact the drying time of paint, potentially leading to issues such as sagging, blistering, and a prolonged period before the paint fully cures. For example, oil-based paints, known for their extended drying times under normal circumstances, can take considerably longer to dry in humid conditions, affecting the overall finish quality.
The importance of proper paint adhesion and curing is paramount for longevity and aesthetic appeal. When paint fails to dry properly due to excessive moisture, the bond between the paint and the surface may be compromised. This diminished adhesion increases the likelihood of paint peeling or chipping over time, necessitating more frequent repainting. Furthermore, historically, controlling indoor humidity was more challenging, making weather conditions a more significant factor in painting decisions.