by Jeffrey C. May — Fungi require moisture. I want to start with a brief review of two types of fungi, because it’s important for building professionals to know the difference. Macrofungi produce fruiting bodies that we call mushrooms or toadstools. These organisms have hyphae that can fan out a few feet to many yards
MOLD & HEALTH Modest wetting and drying in buildings and in ventilation systems is normal and generally poses little risk for occupant health. Similarly, very brief episodes of wetting are not usually a problem provided that steps are taken to rapidly dry all materials. “Dampness” is the presence of unwanted and excessive moisture in buildings.
This Guide provides information and guidance for homeowners and renters on how to clean up residential mold problems and how to prevent mold growth. Molds are part of the natural environment. Outdoors, molds play a part in nature by breaking down dead organic matter such as fallen leaves and dead trees, but indoors, mold growth
This document was developed by the U.S. Environmental Protection Agency, Indoor Environments Division. It provides practical guidance on how to control moisture in buildings. It is not a textbook, code or standard. Who Should Read this Guide This guide can be used by anyone who designs, builds, operates or maintains buildings and heating, ventilating and