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Microshield Water Restoration Presentation, John P. Lapotaire, CIEC 7-12-2011


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Microshield Environmental Services, John Lapotaire, CIEC, presentation on Restorative Structural Drying.

The presentation helps Insurance Agents and Adjusters understand the process of restorative structural drying, the different categories of water according to the ANSI approved IICRC S-500, as well as the benefits of hiring IICRC trained professionals.

John P. Lapotaire, CIEC
Microshield Environmental Services, LLC

Published in: Education, Technology, Business
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Microshield Water Restoration Presentation, John P. Lapotaire, CIEC 7-12-2011

  1. 1. John P. Lapotaire, CIEC<br />Lydia A. Lapotaire, CIEC<br />
  2. 2. Before We Begin<br />Please Silence<br />Your Phones<br />
  3. 3. 1<br />4<br />Introduction<br />Categories of Water Contamination<br />2<br />6<br />5<br />3<br />7<br />IICRC S-500<br />Water Restoration Goals<br />What is Restorative Drying?<br />Restorative Drying Tools<br />The Value of a Trained Professional<br />
  4. 4. Water Restoration<br />ANSI/IICRC S500-2006 Standard and Reference Guide for Professional Water Damage Restoration – 2006<br />
  5. 5. Water Restoration<br />The IICRC Standard for Professional Water Damage Restoration (ANSI/IICRC S500-2006) is a procedural standard. <br />It is based on reliable restoration principles, research and practical experience.<br />
  6. 6. Water Restoration Goals<br />The goal of Restorative Structural Drying is to save structural components including walls, flooring (not just carpeting!), as well as contents. <br />You will learn how the proper management of the variables of airflow, temperature, and humidity can lead to reduced costs of property losses. <br />
  7. 7. You will learn the value of a Balanced Drying System to quickly and affordably dry a property<br /> You will learn why a delayed response of just a few days can change the scope of structural drying as the water loss categories change.<br />Water Restoration Goals<br />
  8. 8. It all Starts with Water<br />Lets Get Started<br />
  9. 9. Water exists in 3 forms:<br />Gas (water vapor)<br />Solid (ice)<br />Liquid<br />
  10. 10. Sources of Water<br />Exterior<br /><ul><li>Roof leaks
  11. 11. Flooding (@ surface)
  12. 12. Ground water (subsurface)
  13. 13. Pressurization
  14. 14. Diffusion of vapor
  15. 15. Infiltration of vapor</li></li></ul><li>Sources of Water<br />Interior<br /><ul><li>Plumbing systems
  16. 16. Washing
  17. 17. Cooking
  18. 18. Respiration
  19. 19. Plants
  20. 20. Disasters</li></li></ul><li>Liquid Water<br />Can cause damage instantaneously<br />Damage increases as time elapses<br />As time elapses, water changes categories<br />
  21. 21. Categories of Water<br />Category 1 - Clean Water <br />Broken water pipes, rainwater, etc<br />Category 2 - Gray Water<br />Contains contamination & microorganisms<br />Toilets with urine, sump pumps, dishwashers<br />
  22. 22. Categories of Water<br />Category 3 - Black Water<br />Contains pathogenic agents<br />Sewage, surface water flooding, pesticides<br />
  23. 23. Categories of Water<br /><ul><li>Category 1</li></li></ul><li>Category 1 Water<br />Category 1 Water - That which is clean at the releasing source and does not pose a hazard if consumed by humans. <br />Category 1 water may become progressively contaminated as it mixes with soils on or within floor coverings or building assemblies (walls, decking,<br />subflooring). Time and temperature, which promote the growth and amplification of microorganisms in water can cause Category 1 water to degrade.<br />
  24. 24. Categories of Water<br /><ul><li>Category 2</li></li></ul><li>Category 2 Water<br />• Category 2 Water - That which begins with some degree of contamination and could cause<br />sickness or discomfort if consumed by humans. As with Category 1 water, time and temperature can cause Category 2 water to become progressively more contaminated.<br />
  25. 25. Categories of Water<br /><ul><li>Category 3</li></li></ul><li>Category 3 Water<br />Category 3 Water - That which is highly contaminated and could cause death or serious illness if consumed by humans. <br />Examples: sewage, rising flood water from rivers and streams, ground surface water flowing horizontally into homes.<br />
  26. 26. Category 3 Water<br />According to the Institute of Inspection Cleaning and Restoration Certification (IICRC) standard for professional water damage restoration (ANSI/IICRC S500-2006), Category 3 water damage (often called black water) is water damage to a structure where the origin is unsanitary or potentially infectious to humans.<br />
  27. 27. Category 3 Water <br />The black water classification also includes less contaminated water not treated in a timely manner.<br />Category 3 water intrusion can be subdivided into three levels that will help the professional restoration business process the contamination efficiently.<br />
  28. 28. Category 3 Level I<br />Category 3 Level I contamination is usually a very limited waste problem. It always originates inside the building or house, affects a small area, does not affect porous material, does not penetrate the structure, and has had limited time of exposure. <br />A small toilet overflow is one example.<br />
  29. 29. Category 3 Level II<br />Category 3 Level II contamination also originates inside the building. However, the area of direct contamination is larger.<br />Porous materials as well as non-porous materials are affected. <br />Restoration must be more thorough to include removing moisture barriers like vinyl and plastics that will contain the contamination. <br />
  30. 30. Category 3 Level III<br />Category 3 Level III cont. Cabinets and other structural enclosures must inspected and possibly removed if the contamination is present — especially if it is inside the walls behind these items. <br />All contaminated porous items such as drywall, carpet, pad, upholstery, drapery, or particleboard furniture must be removed and properly disposed of.<br />
  31. 31. Category 3 Level III<br />Category 3 Level III contamination includes water and waste coming from an outside source such as a septic system, main sewage line, rivers, streams, and ocean waters. <br />Level III indicates more contamination for a longer period and presents a much greater health risk.<br />
  32. 32. Contaminated Water Restoration<br />Dispose <br />carpet cushion<br />absorbent stuffed fabrics <br />Saturated absorbent materials<br />Ceiling tile, dry wall, paper, etc.<br />Evaluate structural materials for degree of contamination and physical damage<br />
  33. 33. Contaminated Water Restoration<br />Discard carpet saturated with Category 3 water<br />Category 2 water carpet contamination may be cleaned with hot water extraction and biocide<br />Remove floor if water reached subflooring<br />Subflooring must be cleaned, disinfected, dried <br />
  34. 34. Review<br />or<br />Break<br />Take 10<br />
  35. 35. Review: Categories of Water Damage<br />Category 1: Clean Water<br />Category 2: Gray Water<br />Category 3: Black Water<br />
  36. 36. Categories of Water Damage<br />Category 1: Clean Water<br />Category 2: Gray Water (rain, clean water in dirty carpets, laundry water, water migrating through building envelope)<br />Category 3: Black Water (flooding from street or river, sewage [bacterial]<br />
  37. 37. Category 3 Water<br />Following a Category 3 water loss, a State Licensed Professional Restoration Business will use proper <br />procedures, techniques, products, and equipment <br />to establish a Balanced Drying System to help restore property to its pre-loss condition safely and as rapidly as possible<br />
  38. 38. Time is Critical<br />72 hours<br />
  39. 39. Water damage in a structure exists in 3 forms:<br />Free Water<br />Absorbed Water<br />Adsorbed Water<br />
  40. 40. Free Water<br />Refers to standing water<br />Easiest to remove<br />
  41. 41. Absorbed Water<br />Refers to water that has become part of the structure due to capillary action<br />Requires a building to need supplemental drying<br />Can only be removed by (1)demolition of saturated materials (2)converting the liquid into a vapor<br />
  42. 42. Adsorbed Water<br />Refers to the chemically bonded water found naturally in materials<br />Removal of adsorbed water damages the material.<br />
  43. 43. What is Drying?<br />Drying is a science, based on established laws of thermodynamics and laws of gases<br />Basically, all states of water seek equilibrium<br />More to Less<br />High to Low<br />Hot to Cold<br />
  44. 44. Removing Water from the Structure<br />Provide an condition in which water wants to migrate from one area (where you want to get rid of it) to an area where it causes no harm<br />Provide tools to change the condition<br />Fully understand the materials and area of water damage<br />
  45. 45. How it all Works……<br />Liquid water will flow, seeking its own level (more to less)<br />Water vapor will move, from higher pressure to lower pressure<br />If water can not flow out of building (drained), then it has to be converted to a vapor (evaporation)<br />
  46. 46. How it all Works……<br />
  47. 47. To properly evaluate temperature, relative humidity, and grains per pound (or g/kg), restorers must use a psychometric chart.<br />A trained and licensed restoration professional will collect temperature and humidity of the property using a thermal hygrometer.<br />The Psychometric Chart<br />
  48. 48. These two readings will establish the capacity of the air mass (temperature) to hold moisture and the relative amount of moisture in the air (relative humidity).<br />Employing these two readings the trained professional can then use the psychometric chart to calculate the grains per pound of water vapor in the air.<br />The Psychometric Chart<br />
  49. 49. The psychometric chart will also provide the indoor environments dew point.<br />The dew point is the temperature at which the air becomes saturated with moisture vapor and can hold no more water vapor.<br />Calculating the dew point temperature is important when monitoring the drying cycle of a structure and wet building materials.<br />The Psychometric Chart<br />
  50. 50. The Psychometric Chart<br />
  51. 51. Psychometric Chart<br />
  52. 52. Just a Simple Little Chart Right?<br />Maybe it would be better to trust a Trained and Licensed Professional to run the calculations.<br />
  53. 53. Water Damaged Building Materials<br />At the surface of the material, Water Activity occurs <br />(conversion of liquid to vapor-evaporation)<br />The further that a liquid has to migrate to the surface, the longer it takes to dry<br />The permeability of a material dictates the speed of migration<br />Water can travel through a material as vapor<br />
  54. 54. Water Activity<br />Water Activity (aw) = Equilibrium relative humidity of the substrate divided by 100<br />All building materials have different rates in which water vapor moves within them<br />Water Activity at the surface determines the evaporation rate.<br />
  55. 55. Removing Water from Saturated Materials<br />Fully assess and measure the area of water damage<br />Create a condition in which water wants to migrate from one area to an area where it causes no harm<br />Provide tools to change the condition<br />
  56. 56. Drying Tools<br />Dehumidifiers- manipulating the specific humidity to allow the air to accept additional moisture in the form of vapor<br />Fans- prevent “layering” of water vapor due to weight; and they transport vapor away from the surface to increase conversion rates.<br />
  57. 57. Dehumidifiers<br />Refrigerant<br />Desiccant<br />
  58. 58. Refrigerant Dehumidifier<br />Most efficient at optimum temperature<br />Power requirements can become prohibitive<br />Require more monitoring (labor hours)<br />
  59. 59. Desiccant Dehumidifier<br />Use silica gel to attract the moisture out of the air<br />Purges moisture from the building under positive pressure - can potentially distribute contaminates<br />
  60. 60. Desiccant Dehumidifier<br />
  61. 61. When is Too Much Too Much<br />
  62. 62. When is Too Much Too Much<br />
  63. 63. Basic Guidelines<br />1. Amount of drying equipment used is based on the volume of air and air exchanges<br />2. It takes a Trained Professional to understand the drying process<br />3. A well planned drying plan will quickly dry the property and save everyone both time and a pile of money<br />
  64. 64. The “Air Exchange” rule<br />Dehumidification processes the air<br />When all of the air in a building or room has been processed by the dehumidifier, then all the air has been exchanged one time through the machine.<br />Dehumidifiers are rated on how much air they process per minute (cfm)<br />
  65. 65. How Much Equipment is Really Necessary?<br />The amount of water in a structure determines the amount of drying equipment needed to process the air<br />
  66. 66. Easy…..Right ???<br />Therefore, if the cubic foot volume of the air in a building is determined, then this amount can be divided by the number of cfm that the dehumidifier can process.<br />
  67. 67. Simple as pi….π<br />If that sum is divided by 60, then the air exchanges per hour can be determined.<br />Any Questions so far? <br />
  68. 68. Hire ONLY Trained & Licensed Professionals<br />Improper water restoration practices have far reaching consequences for Florida property owners.<br /><ul><li>Trained professionals know the essential methods for correct restoration of flood damaged properties. </li></li></ul><li>Here’s the Math………..<br />
  69. 69. Example:<br />Total length X width X height = 20,000 c/f.<br />Divided by a 200 cfm Dh. = 100 minutes to complete an air exchange<br /><ul><li>Divided by 60 minutes = 1.67 air exchanges per hour
  70. 70. 1.67 X 2 =3.34- or 2 exchanges would require 2-200 cfm dehumidifiers.</li></li></ul><li>Got it …Right ????<br />
  71. 71. Just Hire a Trained & Licensed Professional<br />Untrained restoration companies will take longer to complete a drying job.<br />Use more equipment to complete a drying job.<br />Cost you more time and money.<br /><ul><li>Trained professionals will get it Dry quicker and more affordably
  72. 72. EVERYTIME!</li></li></ul><li>How many air exchanges?<br />Typical standard floor saturation requires 1 air exchange per hour<br />Lower walls wet from wicking and bases of personal property wet requires 2 air exchanges per hour<br />Walls & ceilings wet -requires 3 air exchanges per hour<br />
  73. 73. How many air exchanges?<br />Air exchanges establish the optimum conditions for drying <br />Once optimum conditions are met, then additional air exchanges accomplish nothing<br />Because of the physical limitations of water activity & evaporation, 3 air exchanges are the maximum<br />
  74. 74. How many air exchanges?<br />Therefore, adding more dehumidifiers can not lower the Rh beyond what is actually possible<br />Doing the Math lowers the total cost of the job $$$$<br />Saving everyone money!<br />
  75. 75. How many fans?<br /><ul><li>Fans speed up the drying process nominally</li></ul>Air movement increases the amount of water activity that can occur<br />Helps distribute processed air throughout the structure<br />So how many do you need???<br />
  76. 76. Ask the Trained Professional?<br />Most in our industry agree that three fans per dehumidifier are sufficient<br />Fans can be used to dry “from the wall/ceiling cavities” out<br />
  77. 77. Hire ONLY Trained & Licensed Professionals<br />Its worth it!<br /><ul><li>Trained professionals will save you time and moneyon the restoration of all your flood damaged properties. </li></li></ul><li>Additional Drying Techniques<br /><ul><li>For Walls
  78. 78. Ceilings
  79. 79. Cabinets
  80. 80. Floors</li></li></ul><li>Forces dry air into interstitial wall & ceiling cavities and displaces the moisture by purging<br />Excellent for wallpapered walls because it dries from the inside out<br />Really isn’t needed in most applications<br />The Inject-a-Dry System <br />
  81. 81. The Inject-a-Dry System <br />
  82. 82. The Inject-a-Dry System <br />
  83. 83. The Inject-a-Dry System <br />
  84. 84. The Inject-a-Dry System <br />
  85. 85. The Inject-a-Dry System <br />
  86. 86. When fans should not be used<br />When air movement could create bioaerosols<br />Category 3 Sewage- transporting pathogens into the air stream<br />Mold- contaminating the indoor air quality<br />
  87. 87. IICRC S500<br />“Standard and Reference Guide for Professional Water Damage Restoration”<br />Institute of Inspection,Cleaning and Restoration Certification<br /><br />
  88. 88. Hire Trained & Licensed Professionals<br />Trained Professionals will always save you both Time and Money.<br /><ul><li>Microshield will help write a Balanced Drying System for all your water loss properties
  89. 89. Which will allow the Trained Restoration Professional to quickly return the property to its pre-loss condition</li></li></ul><li>Questions<br />
  90. 90. Thank You<br />Lydia A. Lapotaire, CIEC<br />407-383-9459<br /><br /><br />John P. Lapotaire, CIEC<br />3211-229-2778<br /><br /><br />