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Thread: plaster cracks

  1. #1
    Join Date
    Oct 2007
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    1

    Default plaster cracks

    My house was built in 1941 and has plaster walls and ceilings. For some reason, the walls along our stairway and upper hall have hairline cracks throughout the walls. Most are random but there are also long vertical cracks. The vertical cracks do not line up with the studs. They seem to be located where wallpaper seams are. We have papered this area twice in order to cover up the cracks. Both times the wallpaper did not stick very well. The seams were constantly coming loose. We hired a professional to hang the paper. After he was done, whole sheets would fall off.
    Do you have any idea what causes the cracks? How do we get rid of them? We would like to go back to painting the walls.

  2. #2
    Join Date
    Aug 2007
    Location
    The Great White North
    Posts
    4,045

    Default Re: plaster cracks

    Quote Originally Posted by cdhunt View Post
    My house was built in 1941 and has plaster walls and ceilings.
    From here we don't know if the walls are lath and plaster or the gypsum wall board with plaster.

    For some reason, the walls along our stairway and upper hall have hairline cracks throughout the walls. Most are random but there are also long vertical cracks. The vertical cracks do not line up with the studs.
    The cracks can be from a few things.

    Are there any teenagers in the home?

    The stairs are also secured to the studs so any excessive movement occurring with
    the stairs may be causing the cracks.

    If someone happens to be running up and down the stairs or banging into walls the cracks may appear between the studs since that would be weakest point of the wall.

    There may be some structural settling of the home.

    They seem to be located where wallpaper seams are. We have papered this area twice in order to cover up the cracks. Both times the wallpaper did not stick very well. The seams were constantly coming loose. We hired a professional to hang the paper. After he was done, whole sheets would fall off.
    Had an attempt been made to fill in these cracks with joint compound before hanging the paper? If so you would need to use primer for sealing the compound otherwise the wallpaper won't adhere to unsealed compound.

    Cheers.

  3. #3
    Join Date
    Nov 2007
    Posts
    7

    Default Re: plaster cracks

    I have a resin based plaster product that will adhere to the existing lath, bond to remaining surrounding plaster, and is easily worked to the same level of surrounding plaster. It is sandable, and water resistant. This product can be used to skim coat plaster walls. It also adheres to wood, tile, glass, concrete. Please email bjmten@gmail.com
    Brian

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