Mould is a fungus type growth that needs oxygen, warmth, food, and moisture to grow. It is everywhere in nature but should never be in your home.
Unfortunately the tighter the home, the more likely there is for mould to find exactly the right conditions to grow. There are over 20,000 different moulds, and none of them are good for you. The elderly and pre-schoolers are especially at risk owing to their lungs being used sparingly or not quite developed.
In a home that is inadequately ventilated moisture generated by condensation will soak into woodwork or drywall. Mould spores that are carried into the home by air currents or on people or pets will settle on the damp wall and start to grow a new colony. Within 48 hours the mould will be giving off mould spores into the air currents for starting new colonies. Damp drywall is an excellent food source for mould and with the warmth and air will support a new colony.
Some of the mould spores will be breathed in by the occupants where the spores will start a new colony in the person’s lungs. Generally, spores that are sucked in from outside are dealt with by the bodies immune system, but when a person is living and sleeping in a concentration of mould spores, poor health will follow.
Prevention is far better than cure so every attempt must be made to prevent mould from taking hold in your home. Horror stories include homes that have had to be torn down and all of the materials treated and disposed of by hazardous waste experts at substantial cost not to mention the serious health problems that can arise from exposure.