1. 1 Indoor Air Quality: Mold Jim Woods Air Quality Specialist Makah Air Quality Project Makah Tribe

2. 22 Got Mold ?

3. 33 MOLD GROWTH  Moisture  Temperature Between 40 0 F and 100 0 F  Spores  Nutrients Which of these can we control ???

4. 44 How Water Enters a Building Surface water (liquid) Soil Air (vapor) Cooking, breathing, washing, watering plants (vapor) Rain and plumbing leaks (liquid) Groundwater (liquid)

5. 55 Drain cladding, roofing and foundation and windows to keep out rain Exhaust ventilate sources of water vapor Control Water Entry and Exit Use capillary breaks in foundation

6. 66

7. 77 Areas of High RH COLD OUTSIDE

8. 88 Mold or “Mildew” ?

9. 99 Wet materials: rain coats, towels, dogs, etc.

10. 10 Shower/Bath

11. 11 Failed Bathroom Exhaust Fan

12. 12 Cooking

13. 13 Dish washing

14. 14 Mopping floors

15. 15 Plants & Aquaria

16. 16 Water Leaks

17. 17

18. 18

19. 19 Moisture from people

20. 20 A sign of high relative humidity in the building

21. 21 Use lids on pots Use range hood

22. 22 Make sure vented to the outside

23. 23 Use exhaust fans

24. 24 Check exhaust fan flow Tissue paper

25. 25 Ensure tight connections and good air flow to outside

26. 26 Keep moisture contained until totally exhausted outside

27. 27 High Risk  Moisture not vented at source  Poor site drainage  Wet crawl space / basement  Roof, window, wall leaks Moisture Control

28. 28 Moisture Control (cont.) Medium Risk  Occasional exhaust fan use  Evidence of previous moisture Low Risk  Moisture sources controlled  No evidence of moisture

29. 29 Reducing Moisture/Mold Lower the moisture level  Monitor relative humidity  Exhaust at the “source”  Ventilation Keep surfaces warm  Insulation  Air circulation  Add heat

30. 30 Carpet High Risk  Old carpet (mold, organics, lead, dirt)  Installed on damp concrete/soil Medium Risk  New carpet without ventilation Low Risk  Low VOC carpet  Carpet off-gassed before installation  Improved vacuum equipment

31. 31 Pressed wood, paneling/plywood Pressure-treated materials Carpet, rubber, vinyl Internal combustion equipment

32. 32 House Must Breathe Properly Moisture Odors Pollutants

33. 33 Controlling Moisture: Internal Moisture Generation Ventilation: Breathing & perspiration cleaning plants, aquariums, hobbies Exhaust: Showers & baths Laundry Cooking Don’t allow: Un-vented combustion devices

34. 34 Questions?