moisture barrier

A moisture barrier is a material designed to prevent water vapor from passing through surfaces, such as walls, floors, or ceilings. Its purpose is to control humidity levels and protect building components from moisture damage, mold, and deterioration. Typically made from plastics like polyethylene or specialized membranes, moisture barriers are installed during construction or renovation to ensure that indoor environments stay dry and safe. They are essential in areas prone to moisture, such as basements, bathrooms, and kitchens, helping maintain structural integrity and indoor air quality.