Humid spots on bathroom wall
Humidity is one of those things that homeowners need to be incredibly wary of. Too little humidity and you could dry out your skin and sinuses. Too much and you’re looking at moisture splotches and mold growth on your drywall.

This person’s home was experiencing a major humidity problem. The excess moisture buildup behind their walls caused the wood the enlarge and begin forming unsightly bumps on the surface. Sadly, there’s no fix for this problem other than to tear the wood out, replace it with fresh materials, and purchase a dehumidifier. Make sure you have a dehumidifier and/or humidifier for your home, folks!