![]() ![]() If you dig hard enough in a large percentage of homes in the world, you will find wood inside the walls. Homes are commonly built with a certain amount of wood. Many different materials can be used as a base behind the plasterboard, and most of them are porous, which, if it gets wet under the right conditions, mold can grow and thrive within the wall cavity. Although plaster does not support microbial growth, if porous cellulose-based material such as drywall is used on the backside of the plaster for support, mold can grow on the drywall. Mold does not grow on plaster because plaster is non-porous and lime-based or clay. Get A Free In-home Estimate Or call 1-86 Why Can't Mold Use Plaster As A Food Source? Mold growing on plaster walls is growing on the surface of the plaster is likely growing on the paint or dust on the walls. So, when it's said mold does not grow on plaster, it generally means mold will not start eating plaster an off-gassing letting off Microbial Volatile Organic Compounds (MVOCs) causing humans to get sick. What is true is that mold does not use plaster as a food source and will only be on the surface. Mold can be found on many surfaces under the right (or wrong) conditions. You’ve just completed lath and plaster removal! Want to keep the momentum going? Check out more How-To guides on our blog.It is a common belief that mold cannot grow on plaster. ![]() This is tedious but it is imperative that you do this! Otherwise, you could hit a nail while putting up new boarding and it can be a pain to deal with.
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