Flooring prep question - hump in the floor

Discussion in 'Flooring' started by stratocaster1422, Jul 1, 2009.

  1. Jul 1, 2009 #1

    stratocaster1422

    stratocaster1422

    stratocaster1422

    Member

    Joined:
    Jun 27, 2009
    Messages:
    9
    Likes Received:
    0
    In a previous post I mentioned that I had my living room down to the studs and subfloor. Well there is a main beam running through the house and it looks like the main beam was most likely nailed together unevenly, so when the subfloor was placed over it, it wasn't exactly flat compared to the rest of the room. I have a carpenter doing our windows and this was his theory as it doesn't appear the house is settling around it (1940's built).

    We originally had a layer of .25" plywood with parquet glued to it. I cut out the .25" and parquet to expose the .50" subfloor. My plan was to add another layer of exterior grad .25" plywood (glued and nailed) on top of the subfloor, and shim any gaps with asphalt shingles. A floating engineered wood floor would then go on top of the .25".

    Any thoughts or concerns about my method?
     
  2. Jul 9, 2009 #2

    GBR

    GBR

    GBR

    Well-Known Member

    Joined:
    Mar 18, 2009
    Messages:
    402
    Likes Received:
    38
    Depends on how bad the differences are. If gradual and all over, I would use 1/2" ply to help even things out. If sharp and localized, I would use some liquid filler under the 1/4" ply.
    Use plenty of staples or screw-shank nails to secure with glue. Be safe, G
     
  3. Jul 16, 2009 #3

    fastfloors

    fastfloors

    fastfloors

    Flooring Materials

    Joined:
    Jun 29, 2009
    Messages:
    5
    Likes Received:
    0
    GBR really made some good points. I'd say just really consider how much coverage you'll need to even things out.

    Always be safe and good luck with your project!
     

Share This Page