foundation vents

Discussion in 'Hardscaping' started by kevy_kev, Jul 12, 2006.

  1. kevy_kev

    kevy_kev LawnSite Member
    Posts: 4

    i am a homeowner that is putting in a 550ish Sq Ft Raised patio. So far so good. I have the retaining wall done, most of the 18 tons of 3/4" gravel moved around and the sets of stairs into the yard and off the slider done.

    Now I have a problem. The stairs coming off of the laundry room has a foundation vent under the door! My house has a basement but this one corner has a crawl space. Its about 10x8 crawl space area with 2 vents. 1 on the West side and 1 on the North side. Has anyome come across something like this? can I use something to redirect the air flow or just cover it up and hope the 1 vent is good enough?

    thanks
     
  2. tylermckee

    tylermckee LawnSite Member
    from wa
    Posts: 248

    they make vent covers that go around the vent and keep it open, you backfill around them. like a tiny crawlspace access well, head to your local lumber yard/lowes/home depot and see what they have.
     
  3. kevy_kev

    kevy_kev LawnSite Member
    Posts: 4

    thanks tylermckee.
    So it is something that will fit in my stairs? I planned on building exposed stairs using the pedestal method and no lanmding on top since the door opens in.
     
  4. D Felix

    D Felix LawnSite Bronze Member
    Posts: 1,898

    I think what he's referring to is essentially a half-circle metal/plastic piece that goes around the vent. I don't think that will work for what you are describing....

    What you will have to do is remove the vent from that location and move it to an unaffected area, on the opposite side from the remaining vent. Plug the hole with another concrete block, mortared into place. If it's going against the sill, you might want to make sure you get some sealing foam on top of the block against the sill.

    If the stairs will be up against the side of the house above the siding, make sure you adequately flash the sheeting! There was a question on that in the last few days.
     
  5. kevy_kev

    kevy_kev LawnSite Member
    Posts: 4

    After I responded I realized what he was talking about and that it wouldnt work for me.
    So, the only way is to play around with my foundation? That doesnt sound good. It is the last block up against the sill. I guess I could just pull one out and swap it with the vent. SOunds too easy, sure something will go wrong.
     
  6. kevy_kev

    kevy_kev LawnSite Member
    Posts: 4

    as far as the stairs go. I am just butting them up against the deck ledger that was already there and am going to paint that with exterior paint to match the house. The stairs are the width of the ldger too so not overlapping in the siding at all. If thats the case, do I still need to flash? Going to look for the post you mentioned now.
    thanks
     
  7. D Felix

    D Felix LawnSite Bronze Member
    Posts: 1,898

    I don't think I'd butt them up against a deck ledger. The steps will be there until someone tears them out, but that wood ledger board will rot in time, even if it is treated.... Concrete is porous and will hold water longer than you might think. Water against wood isn't a good thing. Wood either needs to be completely wet (underwater) or completely dry to last. It's the getting wet and drying out that causes rot.

    That being said, if you do butt them up against a ledger board, make sure it's flashed well.
     

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