1. State of the Art Work Practices and New Technologies

2. Fungus Terminology Fungus Mold Mildew Fungicide Fungistat

3. Know Your Enemy Fungi Friends –antibiotics –enzymes –pest control –oil spill clean-up Fungi Foes –building material destruction –unsightly stains –allergies –skin infections –lung infections

6. Fungi Control Get rid of the water! Get rid of the food! Don’t forget the air! Kill, then control!

7. Excess Moisture Construction Site Moisture Absorption –Concrete block, slabs –Wall boards –Ceiling tile Induced Humid Air Infiltration –air conditioning vs. de-humidifying Leaky Building Envelopes –joints –concrete seal

8. Water in Buildings

9. Eliminating Water Identify infiltration points Fix air and water leaks Dry or replace moist material

10. Fungus Food Anything organic (contains the element carbon) –Cardboard –Wallpaper glue –Soap and body oil –Carpet fibers

11. Fungi Control You can clean without disinfecting You can NOT disinfect without cleaning

12. Containment –plastic sheeting, duct tape –exhaust fan with HEPA filter –allow for decontamination, staging areas Control of Exposure –vacate adjacent areas as appropriate

13. Containment Guidance

14. Containment

15. Engineering Controls Negative Air HEPA Equipped Vacuum Exhaust Filtration Power tools

16. Engineering Controls

17. Ozone treatments –Isolate & destroy particulate Dehumidifiers Dessicants –Dry up moisture

18. Engineering Controls

19. New Technologies & Treatments Chemical treatments Foggers Dry Ice Radiant Heat

20. Fungicides/ Fungistats Sodium Tetraborate Sodium Hypochlorite (Bleach) Quaternary Ammonium Compounds Other Disinfectants

21. Sodium Hypochlorite (Bleach) Advantages –Cheap –Effective –Removes discoloration from white surfaces Disadvantages –Not compatible with all surfaces –Safety issues –Not a cleaner –Inactivated by heavy organic soil –Unstable

22. Follow Manufacturer’s Directions Use the right dilution Use the right application Change solution when recommended Avoid cross-contamination

23. Foggers

24. Used for large spaces and hard-to- reach areas such as basements, cellars, attics, crawlspaces and wall cavities Atomizes liquid into a fine mist for even surface application Use in musty rooms to eliminate odors Use to pre-treat building materials during construction or renovation

25. Dry Ice Blasting

26. Blasting gun fires dry ice particles (rice- sized) at supersonic speed to impact and clean a surface. The particles are accelerated by compressed air, just as with other blasting systems. Upon impact the dry ice sublimates (goes from a solid to a gas without passing through a liquid phase). The substrate (surface) is left free of mold spores.

27. Radiant Heat Radiant heaters for mold remediation, bed bug treatment and similar projects. This new technology for mold remediation is more efficient than previous heating options.

28. Radiant Heat Using heat to combat contaminants is a new idea but it is based on traditional scientific findings dating back to the 19th century, when Louis Pasteur proved that heat is an effective way to eliminate bacteria and other contaminants. This process, known as pasteurization, is a common technique in the food industry. The same principle, applied using specialized heat in buildings meets mold remediation standards, eliminates dust mites and bed bugs, and more. A single treatment is able to eliminate several potential hazards without introducing potentially harmful chemicals into the structure or surrounding environment.

29. Remediation Hygiene Practices Proper PPE –negative pressure respirators –coveralls –gloves Hygiene –hand hygiene –decontamination –respirator disinfection

30. Points to Remember Eliminating water is the best way to eliminate fungi You cannot disinfect and kill fungi without cleaning first Choose the right chemicals &/or equipment for the job and follow manufacturer’s directions