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Foundation Drainage

Discussion in 'Residential Foundation Codes' started by jar546, May 1, 2015.

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Foundation Drainage

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  2. No, Fail

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  1. jj1289

    jj1289 Sawhorse

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    We have amended the code that clearly prohibits storm drainage tying into the foundation drain. The intent of the footing drain is to collect and funnel ground water away from the foundation. connecting the storm drainage to the footing drain introduces a water into the system creating a greater potential of water leaking into the basement.
     
  2. Globie359

    Globie359 Member

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    R801.3 Roof drainage. In areas where expansive or collapsible soils are known to exist, all dwellings shall have a controlled method of water disposal from roofs that will collect and discharge roof drainage to the ground surface at least 5 feet (1524 mm) from foundation walls or to an approved drainage system.
     
    1 person likes this.
  3. Pcinspector1

    Pcinspector1 Platinum Member

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    EEO window wells R310.2

    2012 IRC, section R310.2.2 window well drainage is allowed to connect to the buildings foundation drain unless amended by the AHJ.

    This type storm water is permitted by code to be entered into the foundation drain system still.
     
  4. jj1289

    jj1289 Sawhorse

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    CT amended the IRC to address this situation and states that it cannot be tied to the foundation drainage system, must be separate
     
  5. linnrg

    linnrg Sawhorse

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    to the original picture:

    read on another site that someplaces are utilizing the footing drain as a method to mitigate radon - would that have anything to do with the vertical unperforated pipe?
     
  6. steveray

    steveray Sawhorse

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    This is what we have...Not sure where it came from.

    (Add) R405.3 Above grade drainage. Above grade drainage systems, including but not limited to gutters and downspouts, roof drains, yard drains, etc. shall not be connected to the foundation drainage system of concrete, masonry or wood foundations.
     
  7. watai0102

    watai0102 Member

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    1. The pipe should go around the entire foundation and should be level. If the ends of the pipe is higher than the rest of the pipe, the pipe will not empty out.
    2. If possible, run ends of pipe out of ground so that water can readily run off. If not possible dig a pit at each pipe end and fill with stones, creating a dry well which will collect water which would otherwise go into your garage.
    3. Is your house at a low point so that water from the surrounding area naturally runs toward it? If so you will need to create berms to direct water away from house.
    4. You should pipe your downspouts away from the house so that the downspout water does not end up in your garage. I would suggest at least ten feet of solid pipe on each downspout.
    5. If a block wall the outside should have been parged with concrete and coated with a black foundation coat
     

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