damp walls and mould , yellow patches and black specks covering the walls, mold growth on wall,house renovation, repair and

air circulation associations bacteria bathroom black mould specks breaks called spalling carbon dioxide ceiling peels damp patches dampness deterioration diagnose embedded environment existing feel flus fresh fungus health healthy home housing humidity importantly infections interacts kitchen mold growth natural older buildings peeling paint process property rain water leaks repair rust expands sick social concrete steel bar surface tonsillitis toxins wall causing damage walls yellow covering house renovation maintenance concept