Some Sampling Issues. Common Causes of mold problems 3/3/2017

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1 Floods Leaks Plumbing Condensation Common Causes of mold problems Some Sampling Issues What do sample results tell us? Who is performing the sampling? Who is analyzing the samples? Cost and time 1

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7 Curing the Mold Problem What are the symptoms? What s causing the problem? What are the appropriate repairs? Getting things dry What s the moisture source? How wet did it get? How long was it wet? What kind of water? Consultants What do they know that you don t? What else have they done? How long have they been doing it? Credentials versus alphabet soup The Wizard of Oz or Toto? 7

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9 What clients want to know What caused it? Who to blame? How long it s been there? How to get rid of it? How much will it will cost? Is it bad for me? How do I restore my properties value? 9

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23 Water damage clean up Skip the M word Remove water damaged material Clean Use good dust control practices Follow lead safe practices 23

24 Clean-up Considerations How wet for how long If not cleanable, tear it out Clean to dirty air flow Elbow grease beats disinfectants Surfaces should be spotless clean and dry before refinishing Use HEPA filtered or exterior exhaust vacuum systems Is everything spotless--the White Glove Test 24

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33 Cleaning carpet How bad is it? Clean it or toss it out? Use negative air HEPA then hot water extraction Truck mounts beat portables Dehumidify after extracting 33

34 Cleaning procedures Establish negative air containment HEPA vacuum all surfaces Wash or wipe all surfaces w/sanitizer HEPA vacuum again Disconnect negative air-air scrub Clean until it s clean-really clean Cleaning ceilings Textured ceilings Blow down Seal Painted ceilings No blow down HEPA vacuum Wipe down w/sanitizer HEPA Vacuum again Ceilings get scuffed up -stuff happens- Expect to repaint 34

35 More clean up considerations Keep the job site clean on a daily basis Scrub the surfaces-scrub the air Clean until it s clean Give liquid sanitizer time to work Keep the equipment clean Draw the right box Frame it Seal it Depressurize Containment Sanitizers All surfaces must be spotless Penetration and contact time Fungicides and fungistatic compounds 35

36 Personal protection Respiratory protection Tyvek suit Eye protection Gloves Steel toed boots-hardhats Personal Protection Dress to suit the situation Material safety data sheets Worker s right to know Temporary workers Tools Hand tools Cleaning tools Ladders and scaffolding 36

37 Materials Protective equipment Tyvek, respirators, knee pads, hard hats, safety glasses, gloves Poly, shrink wrap supplies Tape Chemicals Chemicals Bleach Alcohol Keep it simple Chemical respirator Confined spaces Encapsulant materials Cleaning tools Surface cleaning tools Brushes, rags, sprayers Carpet cleaning equipment HEPA vacuum Hot water extraction Dehumidifiers Air movers-use them cautiously!! 37

38 Decontaminating Equipment What s dirty-what s not? Tagging Air scrubbers Air movers Duct equipment Dehumidifiers Setting up containment Survey the contaminated area Configuration Access points Window Doors How big is the job? What gets removed-what gets cleaned? Containment Equipment Negative air machines Air scrubbers Air mover ventilation Exhaust to outdoor Barrier material Access doors 38

39 Remedial methods Chemical treatment of surfaces Hand cleaning of surfaces HEPA vacuuming Blow downs with air scrubbers Removal Don t wet clean more than you need to Final thoughts on doing your own clean up Can your guys handle it? Are they given time to do a good job Do they have training? Do they have the equipment? Setting up containment Survey the contaminated area Configuration Access points Window Doors How big is the job? What gets removed-what gets cleaned? 39

40 Containment Equipment Negative air machines Air scrubbers Air mover ventilation Exhaust to outdoor Barrier material Access doors 40

41 Setting up negative air Suit to fit the building layout Sufficient exhaust pressure-look for the belly Make up air Maintaining clean-to-dirty air flow with entry Cheapest Available Technology Not Involving Prosecution CATNIP 41

42 I want my new home to make a statement Hi, Sucker 42

43 Outdoor use voids warranty What are the wear factors? Wind Sunlight Precipitation Vapor pressure Fire Movement Gravity Burned up Blown away Washed away Knocked down Tipped over Rotted away Worn away Failure outcomes 43

44 Durability Intelligent response to insult Yielding can be more powerful than attacking Lasting means changing Submit to Nature and endure Good habits 44

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