You may be asking how you can prevent mold.
That can be a chore, since mold is everywhere. THere are always spores in the air. There are significantly more during warm and humid weather, and less in the winter.
While mold spores are all around us, one way that mold can be deterred is to make your home a bad environment for mold. Cheifly, this means eliminating excess moisture around mold’s favored food source, cellulose. This means any water standing on wood or paper based construction materials. If there’s nowhere for the mold to take root, simply, it can’t take root.
If you’re in California, you might want to give us a call and see about getting an assessment from Byebyemold.