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landscape designBuilding a Homebasement
hawami

Water stains on new construction - image inside

hawami
4 years ago

we just noticed that we get water stains on the side of our new house under construction.


I asked the builder and he said it will not go inside the interior walls as the walls are thick (10’?)


I am still concerned and am wondering if any precautionary measures should be taken.


Any advice would be much appreciated!


Thank you!!!





Featured Answer
  • PRO
    Yardvaark
    4 years ago

    Don't you expect the outside of the house to get wet when it rains? I'm befuddled as to what the problem is.

    Comments (22)

    • PRO
      PPF.
      4 years ago

      Are you asking about the foundation? That's just dirt from the ground that's splashed up there.

      hawami thanked PPF.
    • hawami
      Original Author
      4 years ago

      Oh really? But I also saw water mark/stains when it was raining.

    • Olychick
      4 years ago

      When it's raining, the splashes will be wet, thus the water marks. When it dries, it's just dirt that you can probably brush right off. Are you planning on some kind of material to cover the concrete and you're worried that moisture will be behind it, maybe?

      hawami thanked Olychick
    • westes Zone 9b California SF Bay
      4 years ago

      Water drops splashing onto concrete is not a threat to the concrete, as long as the soil underneath drains well. Where you can get into real problems is if you have pooling water right at the area where the cement walls go deep into the ground. Over time this will weaken the concrete structure, and concrete will just absorb that excess water and spread it out through the concrete, putting large areas at risk of leaking as well as at risk of cracking.

      So, the lessons there are to have drain spouts pointing away from the foundation in order to prevent the water from pooling against the side of the home. And also pay attention to pools of water near the foundation during rainstorms, and install good drainage there to prevent longstanding water exposure.

      hawami thanked westes Zone 9b California SF Bay
    • vinmarks
      4 years ago

      Looks like mud to me not water staining. We have red clay here and if you don't have mulch around the foundation you get mud stains on the foundation. Ive seen several homes around us with that kind of staining.

      hawami thanked vinmarks
    • PRO
      Mark Bischak, Architect
      4 years ago

      Plant a layer of 1"-2" diameter washed river rock 6" deep out from the house 6"past the eaves drip line. Have landscaping cloth under the rock and separate the lawn from the rock with metal edging.

      hawami thanked Mark Bischak, Architect
    • worthy
      4 years ago
      last modified: 4 years ago

      From the looks of it, your builder did not use a plastic membrane or other waterproofing measures around the foundation.

      Delta Membrane foundation wrap.

      Besides proper grading and water re-direction, be prepared to re-grade the soil and rock adjacent to the foundation as it settles over time.


      Moving water away from the foundation.

      Rather than just using downspouts dumping water a few feet from the foundation, you can include underground drainage to spread the roof water throughout the yard and/or to a single outlet. Or hook up to municipal storm drains if that is still allowed in your municipality.

      hawami thanked worthy
    • hawami
      Original Author
      4 years ago

      The builder just said he will apply some waterproof finish on there and then paint it.



    • PRO
      Yardvaark
      4 years ago
      last modified: 4 years ago

      Without exception, earth around the house is always graded to slope downward, away from the house. Optimally, this would extend for at least 10'. though that cannot always be had, depending on the configuration of the surroundings. This prevents any water from pooling near the foundation. Then, a layer of mulch blankets a strip of ground (at least 3' or 4' wide) surrounding the house perimeter. (This usually coincides with the foundation planting bed.) The mulch keeps the soil from splashing onto the foundation and staining it. Often, the stains cannot be completely removed, even with detergent and scrubbing. Consequently, many people paint the foundations and get the mulch in place before it happens again. The paint also adds a degree of water resistance to the foundation wall surface.

      hawami thanked Yardvaark
    • hawami
      Original Author
      4 years ago
      last modified: 4 years ago

      Also I am not sure what this does but the plan includes water infiltration system in the backyard. Not sure what that does but it is mandatory by code.



    • PRO
      Yardvaark
      4 years ago

      Wherever a house or other building is built, there is an area of land in which water no longer penetrates, on account of the added roof and paving that prevent it. Consider the amount of water that runs off of these surfaces during a hard rain and you'll see that it's considerable. Multiply this amount times every building in town, every driveway and every street and parking lot. The sum total of water that runs off of these structures can be enormous, and the city/governmental agency is, by default, responsible for dealing with it. Consequently there are all manner of storm sewer pipes, retention ponds, etc. built to handle this runoff. Many cities are trying to get as much of the water to penetrate/infiltrate the ground before it leaves the property of origin, in order to reduce the citywide sum of stormwater runoff. That's probably what the "water infiltration system" that is mandatory by code, is about.

      hawami thanked Yardvaark
    • PRO
      Revolutionary Gardens
      4 years ago

      Make sure to find out if your infiltration system is subject to periodic inspections by the county or city, and what needs done in terms of maintenance. We had a client who ignored theirs for 12 years and it was super expensive to bring it back into compliance.

      hawami thanked Revolutionary Gardens
    • millworkman
      4 years ago
      last modified: 4 years ago

      "The builder just said he will apply some waterproof finish on there and then paint it."


      That needed to be applied before the foundation was back-filled. Ground level only will not do anything much and in every jurisdiction I know of will not pass code inspection.

      hawami thanked millworkman
    • hawami
      Original Author
      4 years ago

      No that waterproofing epoxy was put in. He is talking about another finish All over.

    • millworkman
      4 years ago

      That will do nothing nor will it doing anything to remedy poor site grading. But where exactly did he place this "waterproofing epoxy"?

    • hawami
      Original Author
      4 years ago

      I hired an outside expert who said above grading and topography survey looked OK. The epoxy is under the ground level.

    • worthy
      4 years ago

      It's hard to think of any foundation "waterproofing" that is invisible above grade before final grading. (Except for crystalline capillary waterproofing, which I did in the early 1990s.)

    • NHBabs z4b-5a NH
      4 years ago

      Adding gutters will reduce the splashing from roof runoff if you don’t have them, and it will help the structure by moving water away from the structure.

    • PRO
      M & D Builders
      4 years ago

      This is not a water stain it just a water splash into the concrete when it rain however any waterproofing materails highly recommended to cover this part of the building

    • worthy
      4 years ago
      last modified: 4 years ago

      Consider parging bare concrete foundations where they're visible.

      Parged foundation. Image: Avenue Road Masonry

    • hawami
      Original Author
      4 years ago

      Thank you everyone for your helpful comments. We had a bit of rain yesterday and this is the water mark I am referring to. Builder is saying it is OK.

      Interested to hear other experts’ opinions.




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