giertsen mold and water remediation

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Page 1: Giertsen Mold and Water Remediation
Page 2: Giertsen Mold and Water Remediation

Mold, Water Damage and Mold, Water Damage and IAQIAQ

Presented by:Presented by:

Page 3: Giertsen Mold and Water Remediation

Who we are

• Giertsen Company: Fire, Water & Wind Restoration Specialists Since 1918 • Regional offices in Minneapolis, Milwaukee, Chicago and Florida allow us to quickly meet the needs of our customers.

• Giertsen Company provides services for residential, multi-tenant, commercial and industrial devastation throughout the region.

Visit us on the web: www.giertsenco.comCall us any time: 888-670-1918

Page 4: Giertsen Mold and Water Remediation

Full Service Company

Disaster often strikes unexpectedly, but you know exactly what to expect with Giertsen…

Giertsen provides the following services:• Emergency Services• Reconstruction Services• Cleaning Services• Specialized Services• Catastrophe Response• Consulting

Specialized Services• Mold Remediation• Asbestos Abatement• Bio-hazard Cleanup

Page 5: Giertsen Mold and Water Remediation

Emergency Emergency Services:Services:

24-Hour Emergency Service

• Water Mitigation

• Board-up/Security

• Dehumidification

• Monitoring Equipment

• Temp power and heat

• Deodorization

• Thermal Imaging

• Commercial Drying

• One Hour Response

Page 6: Giertsen Mold and Water Remediation

Categories of Water:Categories of Water:

Category 1 (Clean) Category 2 (Gray) Category 3 (Black)

• Originates from Sanitary Water Source

• No substantial risk from exposure

• Examples: Broken water supply line Tub or sink overflow Broken toilet tanks Appliance malfunctions Melting ice or snow Falling rainfall

• Once Category 1 water leaves the exit point, it may not remain clean once it contacts other surfaces or materials.

• Contains significant contamination

• Has potential to cause sickness if consumed by humans

• Can contain unsafe levels of microorganisms as well as other organic or inorganic materials

• Examples: Discharge from dishwashers Overflows from soiled toilet bowls Seepage due to hydrostatic press. Broken aquariums Punctured water beds

• Category 2 water cleanliness can deteriorate for many reasons – contact with building materials

• Grossly contaminated

• Can contain pathogenic, toxigenic or other harmful agents

• Examples: Sewage Toilet backflows from beyond trap Ground surface water Water from rivers or streams Wind-driven rain from heavy storms

• Such water may contain silt, organic matter, pesticides, heavy metals, regulated metals, or toxic organic substances

The cleanliness of water changes over time and requires a prompt response!

Proper and aggressive drying methods hinder amplification!

Page 7: Giertsen Mold and Water Remediation

Amplification time-lineAmplification time-lineTo prevent amplification of microorganisms, prompt

response is necessary for all categories of water intrusion.

A Categories of Water Damage B The Effect of Time on Microbial Growth

C The Effect of Time on Microbial Growth by Category

Category 2 (Gray)

Category 1 (Clean)

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Category 3 (Black)

1 2 3 4 5 6 7Time Elapsed (Days)

1 2 3 4 5 6 7Time Elapsed (Days)

Category 1 (Clean)

Category 2 (Grey)

A Whether water is categorized as clean, grey or black, when there is a water intrusion and …

B … it is not responded to promptly, microorganisms will amplify. While the amplification will not be immediately noticeable, the greater the length of time, the greater the amplification.

C With the passage of time, microorganisms present in any category of water intrusion will begin to amplify.

FACT: Bacteria and mold spores are always present in the indoor environment.

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Category 3 (Black)

Reprinted with the permission of IICRC S500 Technical Editor; Howard Wolf of HW3 Consulting, Richfield, WI

Page 8: Giertsen Mold and Water Remediation

Classes of water:Classes of water:Class 1 (least amount of water, absorption and evaporation)• Water losses that affect only part of a room or area• Large areas with materials that have absorbed minimal moisture• Little or no wet carpet and/or cushion present

Class 2 (large amount of water, absorption and evaporation)• Water losses that affect at least an entire room of carpet and cushion• Water has wicked up walls less than 24”• Moisture remaining in structural materials

Class 3 (greatest amount of water, absorption and evaporation)• Water may have come from overhead• Ceilings, walls, insulation, carpet, cushion and sub-floor saturated

Class 4 (specialty drying situations)• Consist of wet materials with very low permeance/porosity• Hardwood, plaster, brick, concrete, lightweight concrete and stone• Typically deep pockets of saturation which require very low specific humidity• May require longer drying times and special methods

Page 9: Giertsen Mold and Water Remediation

Category 1, Class 4, 2 Category 1, Class 4, 2 daysdays

Proper Aggressive Drying Methods

Page 10: Giertsen Mold and Water Remediation

All or most IAQ issues or problems are a All or most IAQ issues or problems are a result of someone’s imagination or result of someone’s imagination or hypochondria.hypochondria.

All of people’s ills and problems (even All of people’s ills and problems (even behavioral) are caused by poor air quality.behavioral) are caused by poor air quality.

Comparing air quality sampling results Comparing air quality sampling results with occupational standards is a good with occupational standards is a good means of determining if a problem exists.means of determining if a problem exists.

Conducting many different types of Conducting many different types of sampling will determine what the cause is.sampling will determine what the cause is.

IAQ True or FalseIAQ True or False

Page 11: Giertsen Mold and Water Remediation

Conduct an InspectionConduct an Inspection

What is the source?What is the source? Map the moisture pathsMap the moisture paths Adjoining spaces?Adjoining spaces? Likelihood of second occurrence? Likelihood of second occurrence? Moisture detection devices?Moisture detection devices?

Page 12: Giertsen Mold and Water Remediation

Scope of IAQ ProblemsScope of IAQ Problems

Health care costs Health care costs attributable to poor IAQ attributable to poor IAQ are in the neighborhood are in the neighborhood of $15 billion per yearof $15 billion per year

Ref: American Medical Ref: American Medical AssociationAssociation

Page 13: Giertsen Mold and Water Remediation

IAQ DriversIAQ Drivers Exposure to IAQ contaminants has increased dramatically in Exposure to IAQ contaminants has increased dramatically in

the recent pastthe recent past

People are more informed and have become more People are more informed and have become more particulate in expecting a safe, healthy and comfortable particulate in expecting a safe, healthy and comfortable working environmentworking environment

Litigation around IAQ has become the fastest growing area in Litigation around IAQ has become the fastest growing area in tort law todaytort law today

IAQ standards and codes have come into existenceIAQ standards and codes have come into existence

IAQ regulation and legislation has been proposed and is on IAQ regulation and legislation has been proposed and is on the horizonthe horizon

Page 14: Giertsen Mold and Water Remediation

Bioaerosols Bioaerosols Airborne particles that are living, or Airborne particles that are living, or

originate from living organisms originate from living organisms (ACGIH Bioaerosols, 1999)(ACGIH Bioaerosols, 1999)

Bioaerosols includeBioaerosols include Microorganisms Microorganisms Fragments of microorganismsFragments of microorganisms Toxins & particulate waste products Toxins & particulate waste products

from all varieties of living thingsfrom all varieties of living things

Page 15: Giertsen Mold and Water Remediation

ACGIHACGIH

Defines the term Biologically Defines the term Biologically Derived Airborne ContaminantDerived Airborne Contaminant as:as:

““Bioaerosols, gases, and vapors Bioaerosols, gases, and vapors that living organisms produce.”that living organisms produce.”

Page 16: Giertsen Mold and Water Remediation

Surrounded by MicrobesSurrounded by Microbes& Bioaerosols& Bioaerosols

Sources includeSources include Fungi (Molds & Yeasts)Fungi (Molds & Yeasts) BacteriaBacteria VirusesViruses ProtozoaProtozoa Dust mitesDust mites

People have adapted to mostPeople have adapted to most When exposed, react differentlyWhen exposed, react differently

Page 17: Giertsen Mold and Water Remediation

FungiFungi

decompose dead organic materials to recycle nutrients back into the decompose dead organic materials to recycle nutrients back into the eco systemeco system

production of food, antibiotics and other chemicalsproduction of food, antibiotics and other chemicals

helps plant roots to absorb nutrients from soil and protects the rootshelps plant roots to absorb nutrients from soil and protects the roots

help to maintain a strong ecosystemhelp to maintain a strong ecosystem

Multi-cellular organisms that feed and decompose dead organic matter.

Approximately 70,000 species of fungi have been describedand include mushrooms, mildew, mold, puff balls.

Fungi are important because . . .

Page 18: Giertsen Mold and Water Remediation

Fungi - MoldsFungi - Molds When supplied with a carbon source such When supplied with a carbon source such

as glucose, fungi can synthesize their own as glucose, fungi can synthesize their own proteins, most amino acids and vitamins if proteins, most amino acids and vitamins if nitrogen and essential minerals are nitrogen and essential minerals are available. Carbon sources include:available. Carbon sources include:

Skin flakesSkin flakes Paper on sheetrockPaper on sheetrock PlantsPlants Food productsFood products

Page 19: Giertsen Mold and Water Remediation

Fungi & IAQFungi & IAQ

Fungi are typically found both Fungi are typically found both indoors and outdoorsindoors and outdoors

There are over 100,000 known There are over 100,000 known species of fungispecies of fungi

Page 20: Giertsen Mold and Water Remediation

Cause disease in agricultural products - Cause disease in agricultural products -

harmful to plants, animals and humans.harmful to plants, animals and humans.

Grow on or in buildings and building Grow on or in buildings and building furnishings - harmful to building and furnishings - harmful to building and occupants.occupants.

Allergies to mold develop.Allergies to mold develop.

Cause disease in people - especially those Cause disease in people - especially those with weak immune systems.with weak immune systems.

Fungi can be a problem Fungi can be a problem when. .when. .

Page 21: Giertsen Mold and Water Remediation

The simple presence of airborne The simple presence of airborne fungal spores or fragments indoors fungal spores or fragments indoors is cause for concern whenis cause for concern when The species and rank order of The species and rank order of

concentration magnitude is signi-concentration magnitude is signi-ficantly dissimilar with concurrent ficantly dissimilar with concurrent outdoor samplesoutdoor samples

The source of the sampled indoor The source of the sampled indoor concentrations is from an indoor concentrations is from an indoor microbial amplification sitemicrobial amplification site

Potential “high-risk” fungal species Potential “high-risk” fungal species were identifiedwere identified

Page 22: Giertsen Mold and Water Remediation

Fungal AmplificationFungal Amplification

How does it occur indoors?How does it occur indoors?

Porous building products often Porous building products often contain organic materialscontain organic materials

When these products become wet When these products become wet or moist (flooding, condensation, or moist (flooding, condensation, high RH%), existing fungi high RH%), existing fungi embedded on or in the products embedded on or in the products begin to growbegin to grow

Page 23: Giertsen Mold and Water Remediation

Four Four Requirements for Requirements for

Fungal GrowthFungal Growth SporesSpores NutrientsNutrients TimeTime MoistureMoisture

Page 24: Giertsen Mold and Water Remediation

Fungal Fungal AmplificationAmplification

““Musty/moldy” odors are result of Musty/moldy” odors are result of microbial volatile organic microbial volatile organic compounds (MVOC)compounds (MVOC)

Fungi will continue to grow until Fungi will continue to grow until sources of moisture or nutrients sources of moisture or nutrients are removed from amplification are removed from amplification sitesite

Effective remediation strategies Effective remediation strategies require both thorough cleaning require both thorough cleaning and moisture controland moisture control

Page 25: Giertsen Mold and Water Remediation

Fungus Fungus Among Us . . .Among Us . . .

Other fungi commonly found in Other fungi commonly found in problematice indoor environmentsproblematice indoor environments AspergillusAspergillus PenicilliumPenicillium AlterniaAlternia FusariumFusarium UlocladiumUlocladium Chaetomium & a host of othersChaetomium & a host of others

Page 26: Giertsen Mold and Water Remediation

Health Effects Associated Health Effects Associated with Fungal Exposurewith Fungal Exposure

Fungi have been raised as one of the possible causes Fungi have been raised as one of the possible causes of Sick Building Syndrome (SBS), which has been of Sick Building Syndrome (SBS), which has been frequently reported. Symptoms of SBS can include:frequently reported. Symptoms of SBS can include:

Eye irritation (itching & Eye irritation (itching & watering eyes)watering eyes)

Nasal irritation, nasal Nasal irritation, nasal congestioncongestion

Throat irritationThroat irritation Cough, wheezeCough, wheeze Hoarseness, changed Hoarseness, changed

voicevoice Skin irritation (stinging Skin irritation (stinging

sensation, itching, dry sensation, itching, dry skin)skin)

HeadacheHeadache NauseaNausea Drowsiness, tirednessDrowsiness, tiredness Reduced mental Reduced mental

capacity, mental fatiguecapacity, mental fatigue Changed sensation of Changed sensation of

odor or tasteodor or taste

Page 27: Giertsen Mold and Water Remediation

Health Effects Associated Health Effects Associated with Fungal Exposurewith Fungal Exposure

The symptoms of SBS are non-specific and have The symptoms of SBS are non-specific and have been associated with many factors, including been associated with many factors, including temperature and humidity.temperature and humidity.

Overall, the health effects associated with mold Overall, the health effects associated with mold exposure are generally separated into four exposure are generally separated into four categories:categories: IrritationIrritation AllergyAllergy InfectionInfection ToxicosisToxicosis

Page 28: Giertsen Mold and Water Remediation

Microbes, Bioaerosols & Microbes, Bioaerosols & the Indoor Environmentthe Indoor Environment

High Relative Humidity (RH%)High Relative Humidity (RH%) Microbial Amplification Sites – Microbial Amplification Sites –

Active growthActive growth Microbial Reservoirs – Deposition Microbial Reservoirs – Deposition

without active growthwithout active growth

Page 29: Giertsen Mold and Water Remediation

In the Microbial In the Microbial Remediation Remediation

IndustryIndustry Primarily focused on Fungi & Primarily focused on Fungi &

Bacteria contaminating the Bacteria contaminating the indoor environmentindoor environment

Page 30: Giertsen Mold and Water Remediation

On Wall MaterialsOn Wall Materials

Page 31: Giertsen Mold and Water Remediation

On Roof DeckingOn Roof Decking

Page 32: Giertsen Mold and Water Remediation

Behind Base CovingBehind Base Coving

Page 33: Giertsen Mold and Water Remediation

Water InfiltrationWater Infiltration

Page 34: Giertsen Mold and Water Remediation

VentilationVentilation

Page 35: Giertsen Mold and Water Remediation

VentilationVentilation

Page 36: Giertsen Mold and Water Remediation

Duct WorkDuct Work

Page 37: Giertsen Mold and Water Remediation

Good IAQ???Good IAQ???Temperature and humidity within range that most occupants satisfiedTemperature and humidity within range that most occupants satisfied

Airborne pollutants generated within space (copiers, printers, Airborne pollutants generated within space (copiers, printers, cleaning products) are purged by adequate air exchangecleaning products) are purged by adequate air exchange

Carbon dioxide levels do not point to major ventilation concernsCarbon dioxide levels do not point to major ventilation concerns

Airborne pollutants that are not indigenous to the space are not Airborne pollutants that are not indigenous to the space are not presentpresent

Ventilation system provides adequate/uniform air movement to avoid Ventilation system provides adequate/uniform air movement to avoid perception of stuffinessperception of stuffiness

Most occupants do not experience health concernsMost occupants do not experience health concerns

Page 38: Giertsen Mold and Water Remediation

Causes of IAQ ProblemsCauses of IAQ Problems HVACHVAC

Mold ContaminationMold Contamination

Construction/remodeling Construction/remodeling (VOCs, dust)(VOCs, dust)

Improper use of areaImproper use of area

Building materials (e.g., Building materials (e.g., gypsum)gypsum)

Cleaning/maintenance Cleaning/maintenance chemicalschemicals

Cleaning practicesCleaning practices

Deferred MaintenanceDeferred Maintenance

Individual sensitivitiesIndividual sensitivities

Indoor sourcesIndoor sources

Page 39: Giertsen Mold and Water Remediation

Determining Extent of the Determining Extent of the ProblemProblem

Documenting areas of water damageDocumenting areas of water damage VisuallyVisually Moisture MeterMoisture Meter

Record materials damaged or suspected Record materials damaged or suspected to beto be Gypsum boardGypsum board CarpetCarpet FurnishingsFurnishings

Sampling to determine the extent of Sampling to determine the extent of contaminationcontamination Air samples (documents potential occupant exposure)Air samples (documents potential occupant exposure) Bulk materialBulk material Rodac contactRodac contact Tease TapeTease Tape

Page 40: Giertsen Mold and Water Remediation

Objective:Objective:

Eliminate the effects of the Eliminate the effects of the contamination on building occupants, contamination on building occupants, contents, and structural materials, in contents, and structural materials, in such a fashion as to not subject them such a fashion as to not subject them to further potential harmto further potential harm

There is no There is no oneone right method . . . . right method . . . .

Page 41: Giertsen Mold and Water Remediation

Microbial Microbial RemediationRemediation

Remediation equipmentRemediation equipment

Remediation techniquesRemediation techniques

Remediation products & materialsRemediation products & materials

Microbial remediation of HVAC Microbial remediation of HVAC

systemssystems

Page 42: Giertsen Mold and Water Remediation

Remediation EquipmentRemediation Equipment

Negative air machines / air scrubbersNegative air machines / air scrubbers

HEPA vacuumsHEPA vacuums

Solution application equipmentSolution application equipment Pump sprayersPump sprayers

Flo-jet type pumpsFlo-jet type pumps

Airless sprayersAirless sprayers

Pressure potsPressure pots

Page 43: Giertsen Mold and Water Remediation

Remediation Remediation EquipmentEquipment

Drying/dehumidification equipmentDrying/dehumidification equipment Extraction equipmentExtraction equipment Power hand tools Power hand tools

Sanders Sanders – – Power saws Power saws Drills Drills –– Demolition hammers Demolition hammers

Demolition toolsDemolition tools Hand toolsHand tools

Page 44: Giertsen Mold and Water Remediation

Products & MaterialsProducts & Materials

Anti-microbial agentsAnti-microbial agents Use subject to FIFRA (Federal),State, Use subject to FIFRA (Federal),State,

& Local regulations& Local regulations

Containment materialsContainment materials

OtherOther

Page 45: Giertsen Mold and Water Remediation

Products & Materials Products & Materials Anti-Microbial AgentsAnti-Microbial Agents

BiocidesBiocides Generally provide short-term kill of microbesGenerally provide short-term kill of microbes

Anti-microbial treatments & coatingsAnti-microbial treatments & coatings For long-term inhibition of microbial For long-term inhibition of microbial

amplification on treated surfacesamplification on treated surfaces Both regulated federally under FIFRA & Both regulated federally under FIFRA &

subject to additional state & local regulationssubject to additional state & local regulations EncapsulantsEncapsulants

Provide no significant anti-microbial Provide no significant anti-microbial properties, but act as sealerproperties, but act as sealer

Page 46: Giertsen Mold and Water Remediation

Anti-Microbial Anti-Microbial AgentsAgents

Commonly used biocides for Commonly used biocides for microbial remediation work includemicrobial remediation work include Sodium hypochlorite (bleach solution)Sodium hypochlorite (bleach solution) Chlorine dioxide (OxineChlorine dioxide (Oxine™)™) Quaternary ammonium compoundsQuaternary ammonium compounds

Page 47: Giertsen Mold and Water Remediation

Anti-Microbial AgentsAnti-Microbial Agents

Other commonly used biocides Other commonly used biocides for microbial remediationfor microbial remediation IodineIodine PeroxidePeroxide Ethylene oxideEthylene oxide GluteraldhydeGluteraldhyde Phenol-based productsPhenol-based products AlcoholAlcohol

Page 48: Giertsen Mold and Water Remediation

Surface TreatmentsSurface Treatments

Commonly used for microbial Commonly used for microbial remediationremediation

Aegis MicrobeShieldAegis MicrobeShield™™ Foster Products 40-20Foster Products 40-20 MicrobanMicroban PorterceptPortercept Tuff Coat or Super SealTuff Coat or Super Seal Kilz PrimerKilz Primer Bullseye PrimerBullseye Primer

Page 49: Giertsen Mold and Water Remediation

EPA Terms for EPA Terms for Anti-Microbial Anti-Microbial

AgentsAgents SterilizerSterilizer

Any chemical or physical process used to Any chemical or physical process used to destroy all living organisms in water or on destroy all living organisms in water or on the surface of various materialsthe surface of various materials

DisinfectantDisinfectant Any chemical or process that destroys Any chemical or process that destroys

more than 99% of microorganisms more than 99% of microorganisms capable of causing human disease. May capable of causing human disease. May not kill all spores on inanimate surfacesnot kill all spores on inanimate surfaces

Page 50: Giertsen Mold and Water Remediation

SanitizerSanitizer An agent that reduces the number An agent that reduces the number

of microorganisms to safe levels as of microorganisms to safe levels as judged by public health judged by public health requirementsrequirements

DeodorizerDeodorizer A chemical or gas that covers, A chemical or gas that covers,

modifies, removes or destroys odor modifies, removes or destroys odor causing agentscausing agents

EPA Terms for EPA Terms for Anti-Microbial Anti-Microbial

AgentsAgents

Page 51: Giertsen Mold and Water Remediation

Other Remediation Other Remediation Products & MaterialsProducts & Materials

Lay flat hose, flex duct, rigid ductLay flat hose, flex duct, rigid duct

Disposal bags (heavy poly, 4-6 mil)Disposal bags (heavy poly, 4-6 mil)

Disposable cloths / wipesDisposable cloths / wipes

Vacuum filtersVacuum filters

Page 52: Giertsen Mold and Water Remediation

Other Remediation Other Remediation Products & MaterialsProducts & Materials

GlovesGloves

Respirator filtersRespirator filters

Disposable Disposable coveralls coveralls

Painters tapePainters tape

Nylon tie strapsNylon tie straps

Replacement Replacement bladesblades

????????????

Page 53: Giertsen Mold and Water Remediation

Remediation Remediation TechniquesTechniques

Typical remediation techniques includeTypical remediation techniques include

HEPA contact vacuuming of surfaces or HEPA contact vacuuming of surfaces or itemsitems

Controlled demolition and/or removal of Controlled demolition and/or removal of contaminated materialscontaminated materials

Hand wiping / washing of surfaces or itemsHand wiping / washing of surfaces or items

Wet extraction of surfaces or items followed Wet extraction of surfaces or items followed by accelerated moisture removal processby accelerated moisture removal process

Page 54: Giertsen Mold and Water Remediation

Remediation Remediation TechniquesTechniques

Typical remediation techniques includeTypical remediation techniques include

Fumigation, etc. of salvaged itemsFumigation, etc. of salvaged items Scraping, sanding or planing of semi-porous Scraping, sanding or planing of semi-porous

surfaces free of embedded microbial growthsurfaces free of embedded microbial growth Application of anti-microbial surface Application of anti-microbial surface

treatments to remaining materials or items treatments to remaining materials or items as a final stepas a final step

Page 55: Giertsen Mold and Water Remediation

HEPA Contact HEPA Contact VacuumingVacuuming

Vacuuming remaining surfaces free of Vacuuming remaining surfaces free of accumulated particulate is a key accumulated particulate is a key component of successful remediationcomponent of successful remediation

HEPAHEPA Filtered canister vacuums with assorted Filtered canister vacuums with assorted

brush attachmentsbrush attachments

Page 56: Giertsen Mold and Water Remediation

Hand Wiping / Hand Wiping / WashingWashing

Non-porous or semi-porous surfaces Non-porous or semi-porous surfaces and items are detailed by hand and items are detailed by hand wiping with disposable, treated wiping with disposable, treated clothscloths

Non-porous surfaces may be wet Non-porous surfaces may be wet cleaned using a surfactant and/or a cleaned using a surfactant and/or a sanitizing agentsanitizing agent

Page 57: Giertsen Mold and Water Remediation

Controlled Controlled Demolition of Demolition of Contaminated Contaminated

MaterialsMaterials Contaminated materials are isolated Contaminated materials are isolated in a work area with appropriate in a work area with appropriate Environmental Engineering ControlsEnvironmental Engineering Controls

Materials & debris are removed in a Materials & debris are removed in a controlled fashioncontrolled fashion

Removed materials are properly Removed materials are properly sealed for removal & transportsealed for removal & transport

Page 58: Giertsen Mold and Water Remediation
Page 59: Giertsen Mold and Water Remediation
Page 60: Giertsen Mold and Water Remediation

Scraping/Sanding of Scraping/Sanding of Contaminated Contaminated

MaterialsMaterials Contaminated materials are isolated in a Contaminated materials are isolated in a

work area with appropriate work area with appropriate Environmental Engineering ControlsEnvironmental Engineering Controls

Loose dust & debris are then HEPA-Loose dust & debris are then HEPA-vacuumed from the material’s surfacevacuumed from the material’s surface

Embedded microbial growth is physically Embedded microbial growth is physically removed via scraping or sandingremoved via scraping or sanding

Removed debris & particulate is Removed debris & particulate is collectedcollected

Page 61: Giertsen Mold and Water Remediation

Application of Anti-Application of Anti-Microbial Surface Microbial Surface

TreatmentsTreatments Contaminated semi-porous surfaces Contaminated semi-porous surfaces

(e.g. wood framing members, sub-(e.g. wood framing members, sub-floors, etc.) are often salvageable, floors, etc.) are often salvageable, providingproviding Moisture source has been correctedMoisture source has been corrected Loose debris & significant microbial Loose debris & significant microbial

amplification has been physically amplification has been physically removedremoved

Material has been dried to normal stateMaterial has been dried to normal state

Page 62: Giertsen Mold and Water Remediation

In remediation process, anti-In remediation process, anti-microbial coatings or surface microbial coatings or surface treatments are often applied to treatments are often applied to remaining surfaces as a “Final Step”remaining surfaces as a “Final Step”

A number of specialty anti-microbial A number of specialty anti-microbial products are being used in Microbial products are being used in Microbial Remediation industry Remediation industry

Application of Anti-Application of Anti-Microbial Surface Microbial Surface

TreatmentsTreatments

Page 63: Giertsen Mold and Water Remediation
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Page 65: Giertsen Mold and Water Remediation

Microbial Contamination in Microbial Contamination in HVAC SystemsHVAC Systems

Requires higher degree of precision Requires higher degree of precision than typical “duct cleaning” methodsthan typical “duct cleaning” methods

Determine the HVAC system’s role in Determine the HVAC system’s role in microbial contaminationmicrobial contamination Is HVAC system the (or a) contamination Is HVAC system the (or a) contamination

source (Microbial Amplification Site, ORsource (Microbial Amplification Site, OR Is contamination in HVAC system Is contamination in HVAC system

deposition from other areas (Microbial deposition from other areas (Microbial Reservoir)Reservoir)

Page 66: Giertsen Mold and Water Remediation

Microbial Contamination Microbial Contamination in HVAC Systemsin HVAC Systems

Correct HVAC problems that are leading to Correct HVAC problems that are leading to microbial amplificationmicrobial amplification

Negative pressurization must be Negative pressurization must be maintained within HVAC system maintained within HVAC system throughout remediation processthroughout remediation process

Proper Environmental Engineering Controls Proper Environmental Engineering Controls must be utilized to prevent occupant must be utilized to prevent occupant exposure and cross-contaminationexposure and cross-contamination

Page 67: Giertsen Mold and Water Remediation

Abatement ProceduresAbatement ProceduresLevel I: Small Areas (<2 sq. ft.)Level I: Small Areas (<2 sq. ft.)

Clean-up by Clean-up by Maintenance StaffMaintenance Staff

Trained in cleaning, Trained in cleaning, protection, health protection, health effectseffects

Free from allergy, Free from allergy, asthma, etc.asthma, etc.

Respiratory Respiratory Protection?Protection?Personal Protection?Personal Protection?

Spray down with Spray down with 10% bleach10% bleach

Clean Clean surrounding surrounding areas with areas with bleachbleach

Place materials Place materials in sealed bagsin sealed bags

DisposalDisposal

Page 68: Giertsen Mold and Water Remediation

Abatement ProceduresAbatement ProceduresLevel III: Large-Scale Remediation Level III: Large-Scale Remediation

(>30 sq. ft.)(>30 sq. ft.)

Personnel trained Personnel trained in hazardous in hazardous materialsmaterials

Containment of Containment of affected areaaffected area

Place material in Place material in double-sealed double-sealed plastic bagsplastic bags

HEPA-vacuum HEPA-vacuum before removing before removing barriersbarriers

Respiratory & Respiratory & personal protectionpersonal protection

Air monitoringAir monitoring

Page 69: Giertsen Mold and Water Remediation

An IAQ Management Plan Helps An IAQ Management Plan Helps to Organize Specific Occupant to Organize Specific Occupant

NeedsNeeds Documents IAQ complaints of occupants Documents IAQ complaints of occupants

– effective communication– effective communication Provides policies & procedures for Provides policies & procedures for

addressing changes to the tenant addressing changes to the tenant spaces or building w/remodeling, etc.spaces or building w/remodeling, etc.

Helps to define O & M and Helps to define O & M and housekeeping procedureshousekeeping procedures

Reinforces good IAQ practices,Reinforces good IAQ practices,such as no smokingsuch as no smoking

Page 70: Giertsen Mold and Water Remediation

Implementation of the IAQ Implementation of the IAQ PlanPlan

Conduct initial walk-through or Conduct initial walk-through or evaluation of buildingevaluation of building

Organize health & safety Organize health & safety committees to meet periodicallycommittees to meet periodically

Record and log occupant Record and log occupant complaints – respond appropriatelycomplaints – respond appropriately

Begin training building staff Begin training building staff to specific responsibilitiesto specific responsibilities

Page 71: Giertsen Mold and Water Remediation

““Rome wasn’t built in a Rome wasn’t built in a day”day”

An IAQ management plan requires An IAQ management plan requires commitmentcommitment

PatiencePatience Clear communication between Clear communication between

management & tenantmanagement & tenant Positions the building management in Positions the building management in

good legal good legal and ethical standing with the tenantsand ethical standing with the tenants

Provides a safe workingProvides a safe workingenvironmentenvironment

Page 72: Giertsen Mold and Water Remediation

Questions ????Questions ????

Contact InformationContact Information

Kevin Giertsen, Giertsen CompanyKevin Giertsen, Giertsen Company

Phone: 888-670-1918Phone: 888-670-1918www.giertsenco.com