Can Mold Grow Behind Plaster Walls. However plaster walls can contain paper backing and if moisture penetrates the back of the plaster, the walls will need to be removed. Mold on plaster walls on the other hand are cleanable since it is not a food source, and not porous.
1 is it mold or mildew growing on your walls? It can grow quickly in the most inappropriate places, and one of those places just so happens to be your skin. Mold commonly grows out of sight behind walls in the wall cavities.
You won't be able to deal with it yourself.
You won't be able to deal with it yourself. Remove mold from plaster walls. Your walls' appearance can change significantly if there's mold growth behind them. Mold (american english) or mould (british english), also sometimes referred to as mildew, is a fungal growth that develops on wet materials.