Healthy Space Crawlspace Fix To Damp, Wet, Moldy, And Unhealthy Crawlspace.


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A must see if you think you crawlspace is making you sick. From mold, insects, water, or odors. The best way to fixes these problems.

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Healthy Space Crawlspace Fix To Damp, Wet, Moldy, And Unhealthy Crawlspace.

  1. 1. Crawl Space Science
  2. 2. Over 250,000 new homes and thousands of additions are built each year with dirt crawl spaces. There are now 26 million of them.
  3. 3. There is no shred of evidence or science that says vented dirt crawl spaces make sense – and tons of evidence, right before our eyes, that says they are a serious problem.
  4. 4. A home costs money to operate – to heat and cool, and to maintain. A vented dirt crawl space raises your heating and cooling cost 15% (to 25%) every month, and makes it very likely you’ll have a big expense for mold removal and/or rotted wood replacement
  5. 5. Buyers Expect a Dry Crawl Space
  6. 6. Crawl Space Terms of the Trade
  7. 7. Moisture in the Crawl Space Dirt Crawl Space Problem
  8. 8. The problem is moisture inside of a building – particularly because a building is made from organic materials, filled with objects made from organic materials, and lived in by people.
  9. 10. Moisture From The Ground Exposed earth adds a continuous stream of water vapor into your home.
  10. 11. Moisture From The Ground Groundwater leakage lays in a crawl space slowly evaporating into the house.
  11. 13. Crawl Space Foundation Types Concrete Block Walls Hollow, Very Porous, and Fills with Water!
  12. 14. Crawl Space Foundation Types Poured Concrete Walls Cracks & Porous!
  13. 15. Crawl Space Foundation Types Stone Walls Leaks Water & Air!
  14. 16. Moisture From the Air Relative humidity of air goes down by 2.2% for every degree we heat it and up by 2.2% for every degree we cool it.
  15. 17. How Summer Venting Makes a Crawl Space Moisture Problem Worse
  16. 18. “ Water does very little to ruin a home with a dirt crawl space. It’s the water vapor that kills the house.”
  17. 19. On hot days, we are venting our crawl spaces with hot air.
  18. 20. On cold days, we are venting our crawl spaces with cold air.
  19. 21. On wet days, we are venting our crawl spaces with wet air.
  20. 22. Moisture inside your home is bad for what’s in it.
  21. 23. Why are Crawl Space Floors Dirt Anyway?
  22. 24. The only reason to build a home with a dirt crawl space is to save money
  23. 25. But I never go down there, so why should I care? ?
  24. 26. You Breath Crawl Space Air – Like it or Not
  25. 27. STACK EFFECT
  26. 28. Negative Effects of a Wet or Damp Crawl Space are: “ Just Add Water”
  27. 29. Dust Mites: #1 Indoor Allergen
  28. 30. Sticking – Swollen Doors & Windows Can’t get in?
  29. 31. Smelly Damp Carpets
  30. 32. Buckling Hardwood Floors
  31. 33. Condensation/Rotting/Mold in your Attic -As humid air escapes into your attic it can condense against the cold ceiling or roof.
  32. 34. Frost or Condensation and mold on the inside of windows in cool weather
  33. 35. Increased Energy Bills Damp air takes more energy to cool in the summer and heat in the winter.
  34. 36. Mold Upstairs
  35. 37. Decreased Life of Roof Sheathing & Shingles
  36. 38. Decreased Life of the Paint on the outside of your house
  37. 39. Aggravated Asthma & Allergies
  38. 40. Ducts in a Dirt Crawl Space – More Bad News!
  39. 41. Ducts Bring Crawl Space Air Upstairs Easily!
  40. 42. Ducts that are wet from condensation rob you of energy
  41. 43. Higher Energy Bills in a Dirt Crawl Space
  42. 44. Dirt Crawl Spaces make the air in your house damp, and damp air costs more to heat and cool
  43. 45. If Light Can Get In, So Can Air Air leaks where outside air can enter; a crawl space must be sealed.
  44. 46. Fiberglass insulation does little when it’s either not in a closed cavity or when it’s damp
  45. 47. When fiberglass insulation is just a little damp, it loses a whole lot of its insulation value
  46. 48. Paper-faced insulation is “mold candy” – Mold loves paper even more than wood
  47. 49. Mold needs 70% Relative Humidity & an organic food source to grow
  48. 50. Mold will grow on paper & cardboard 1st, then plywood, and finally on framing lumber
  49. 51. Damp Leather – Sound the mold dinner bell!
  50. 52. Wet load bearing girders and floor joists under attack by mold
  51. 53. Health Problems
  52. 54. Besides irritating people with asthma and mold allergies, studies show that prolonged exposure to mold can actually cause asthma.
  53. 56. Who wants to buy a house with mold? Nobody.
  54. 57. Dust mites live upstairs, but they thrive in homes with damp crawl spaces
  55. 58. Bugs & Critters Love Dirt Crawl Spaces!
  56. 59. What’s that White Chalky Powder?
  57. 60. That white, chalky powder on your walls is Efflorescence
  58. 61. Dirt Crawl Space Solutions: 4 step solution
  59. 62. Standing water needs to be addressed prior to the installation of CleanSpace Step 1: Groundwater Leakage
  60. 63. A Specially Designed Crawl Space Sump System Has Features Such As: A sturdy liner made to mate with a lid. An airtight lid. A floor drain in the lid in case of a plumbing leak. A reliable cast-iron pump with mechanical float switch. A stand under the pump.
  61. 64. The SmartSump
  62. 65. The SmartDrain Warns of interior leaks
  63. 66. What if the pump fails? What if the power goes out?
  64. 67. A Battery Back-up Pumping System
  65. 68. Generators A generator is only a good idea if you have an automatic one permanently installed
  66. 69. In extreme cases you can dig a trench and install a perforated PVC drainage pipe.
  67. 70. Zero Tolerance for Crawl Space Water?
  68. 71. Triple Pump Protection The King of Sump Pumps
  69. 72. Freezing Discharge Lines IceGuard Snow, no problem. Patented IceGuard solves the problem of frozen discharge lines.
  70. 73. Dirt Around Foundation Settles
  71. 74. Keep Gutters Clean!
  72. 75. Downspouts Unsightly tripping hazard!
  73. 76. LawnScape Outlet
  74. 77. RainChute EZ
  75. 78. Step 2: Isolate the House From the Earth
  76. 79. The Solution Must <ul><li>Stop water vapor from flowing up from the soil </li></ul><ul><li>Stop water vapor from flowing through or off the crawl space walls </li></ul><ul><li>Allow water to drain from the walls to the sump location </li></ul><ul><li>Allow water to drain from the floor to the sump location </li></ul><ul><li>Not get ruined when someone crawls on it </li></ul><ul><li>Be durable, so it lasts as long as the house does </li></ul><ul><li>Be affordable </li></ul><ul><li>Bonus* Be treated with an anti-microbial ingredient so mold and bacteria will not grow on it. </li></ul>There are 2 basic approaches – a concrete floor and a plastic liner.
  77. 80. Pros & Cons of Concrete Floors
  78. 81. <ul><li>Stop water vapor from flowing up from the soil </li></ul><ul><li>Stop water vapor from flowing through or off the crawl space walls </li></ul><ul><li>Allow water to drain from the walls to the sump location </li></ul><ul><li>Allow water to drain from the floor to the sump location </li></ul><ul><li>Not get ruined when someone crawls on it </li></ul><ul><li>Be durable, so it lasts as long as the house does </li></ul><ul><li>Be affordable </li></ul><ul><li>Bonus* Be treated with an anti-microbial ingredient so mold and bacteria will not grow on it. </li></ul>
  79. 82. Concrete? Not the Solution Concrete floors, unless combined with ways to drain the walls and floor, and ways to stop the water vapor from the walls and floor, are not the answer.
  80. 83. This home had a 6 mil polyethylene ground cover, but it had holes in it and it wasn’t sealed at the perimeter up the walls, so the house rotted anyway.
  81. 84. “ Extreme Makeover – Crawl Space Edition
  82. 85. CleanSpace is a 20 mil thick plastic liner, similar to a pool liner, that can be fitted in your crawl space to completely seal off your home from the earth.
  83. 86. Crawl spaces with existing concrete floors can be treated in the exact same manner
  84. 87. A dimpled polyethylene membrane under the CleanSpace liner allows water to flow to a sump in a crawl space that already has a concrete floor.
  85. 88. Radon Gas CleanSpace is a passive Radon reduction system. (If an “active” system needs to be installed, a fan can draw air from below the CleanSpace and exhaust it outside above the highest eave.)
  86. 89. Step 3: Seal Out the Outside Air The CleanSpace vent covers seal the air out, insulate, and improve the appearance.
  87. 90. The Crawl Space Access Door Should Seal Tight Before. Rotting, loose-fitting, warped After. A snug-fitting, all-plastic door
  88. 91. Block walls are most common in dirt crawl spaces
  89. 92. Seals the top of block walls. CleanSpace WallCap
  90. 93. Once the liner is installed and the vents and air openings to the outside are closed, the crawl space will begin to dry out. There is just one step left, dehumidification... Step 4: Keeping Crawl Space Air Dry
  91. 94. Not Just Any Dehumidifier
  92. 95. The SaniDry is a high-capacity, high-efficiency dehumidification system, with air filtration, in a single unit.
  93. 96. The SaniDry Air System wrings your air dry, and its powerful blower moves that dry air out into and around your crawl space. This dry air then dries your building materials and contents, which makes the damp smell and damp feeling go away!
  94. 97. It filters particles out of the air smaller than any mold spore or dust mite dropping
  95. 98. Open Sump Hole? This is a Humidifier!
  96. 99. Question: What Makes a Crawl Space Smell Musty? Answer = Mold
  97. 100. Floor Insulation – Yes? or No?
  98. 102. Duct Leakage First Your Enemy, Now Your Friend.
  99. 104. Conditioning the Crawl Space
  100. 105. If the crawl space is completely sealed, you can condition it by constantly blowing a small amount of air from upstairs into the crawl space.
  101. 106. Crawl-O-Sphere Air Machine Not as effective as a SaniDry, but a lower-cost alternative for conditioning the crawl space.
  102. 107. Combustion Appliances You must not depressurize a space where combustion appliances are located!
  103. 108. One easy way to provide combustion air is to install two vents in the crawl space ceiling to the first floor.
  104. 109. Crawl Space No - No’s <ul><li>Don’t put a vapor barrier or rigid insulation board on the ceiling of your crawl space </li></ul><ul><li>Don’t close vents without sealing the earth. </li></ul><ul><li>Don’t seal the earth without closing the vents. </li></ul><ul><li>Never use a fan to blow outside air into your crawl space. </li></ul><ul><li>Never use a fan to blow air out of your crawl space. </li></ul><ul><li>Don’t install a liner or concrete without removing organic material such as wood, cardboard, insulation, etc., from the dirt floor first. </li></ul><ul><li>Don’t depressurize a space that has combustion appliances (more than one pascal). </li></ul><ul><li>Don’t run your dryer vent into your crawl space. </li></ul><ul><li>Don’t ignore the problem. </li></ul>
  105. 110. Building Code Lies The building code allows dirt crawl spaces that are vented. In fact, they require them to be vented. Recently in the 2000 International Residential Code, they have added exceptions to the venting provision. One exception says “where warranted by climactic conditions, ventilation openings to the outdoors are not required if ventilation openings to the interior are provided”.
  106. 111. “ This house was built according to Building Code”
  107. 112. There is a document from the Department of Energy that says vented dirt crawl spaces are wrong, and to close the vents. It goes on to say that they recognize that this is against the building code, so you might have to pull some creative explanation to get by the local inspector. Call it a “short basement” Code says a basement doesn’t require venting!
  108. 117. Crawl Space Science Q & A Session