Sealing and insulating the basement walls helps to reduce humidity and ... Some installations also require a vapor barrier: “If you’re working with rigid foam or closed-cell spray foam ...

Like a traditional basement, dampness from the ground ... Cover the floor and foundation walls with a plastic vapor barrier, and use a dehumidifier to remove remaining moisture from the air.

Sump pumps actively remove water that collects below the basement floor, while perimeter drains capture water at the footing level. Vapor barriers applied to interior walls and floors prevent ...