Mold growth in homes is the hot topic in the home building industry today. Headlines tout the danger of exposure to mold in our homes and at work. A member of the fungi family, mold comes in thousands of varieties and exists in every indoor and outdoor environment. It is a natural and necessary part of the ecosystem in which we live. Although many types of mold have positive benefits, there are several strains that can lead to health problems if allowed to flourish indoors.