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Thread: plaster ceiling

  1. #1
    Join Date
    Aug 2007
    Location
    Hudson Valley, NY
    Posts
    5

    Default plaster ceiling

    We own a 1790's house. Due to a leaky roof one of the bedroom ceiling collapsed. The attic is above it. What fell down wasn't the plaster ceiling but sheet rock ceiling. We would like to pull down the whole sheet rock ceiling to expose the plaster ceiling, but have discovered weak areas in the plaster ceiling. They move when pushed. The whole ceiling has little cracks in it. Would it be better just to put up a new sheet rock ceiling or is there a way to repair the plaster ceiling and how would we go about doing that?
    Is there a way to tell how sturdy the plaster ceiling is? My concern is that if we decide to cover it back up could the plaster ceiling break apart at one point and be heavy enough to have the sheet rock fall on our heads?
    Any and all advice for us do-it-yourselfers would be greatly appreciated.

  2. #2

    Default Re: plaster ceiling

    Plaster ceilings (and walls)are always worth saving. Often they were covered up by well meaning people who didn't have access to any repair information. As you noted your sheetrock ceiling fell down. Plaster from the 18th century through to the early 1920's was made from lime. Lime plaster while it may get heavy from water leaking on it, when it dries out it will be as good as ever. Sheetrock will just fall down when wet. Original plaster by virtue of it still being in place and not falling down makes it a great surface to restore. Anything you replace your original plaster will be inferior in quality. Try reading http://www.thisoldhouse.com/toh/know...628100,00.html

  3. #3
    Join Date
    Aug 2007
    Location
    Hudson Valley, NY
    Posts
    5

    Default Re: plaster ceiling

    Thank you, Plaster Maestro. I took your advice and checked out the web site you gave me.
    In the meantime, however, here is how I am progressing. As I was pulling down the sheet rock ceiling a huge chunk of the plaster ceiling fell on my head. No stitches needed, but I now wear a hard hat along with goggles and a breathing mask. That area is too large for a novice like me to even consider attempting to fill in with plaster. The fallen plaster ceiling revealed a lathe ceiling. I have halted my work as I am contemplating what to do next.
    I know I have to pull down all the moldy sheet rock. Do I pull down all of the plaster and then cover up the lathe with sheet rock?
    Anyone out there who could advise me? I have photos of the ceiling I can share.

  4. #4

    Default Re: plaster ceiling

    I would be happy to review your photos. The original plaster cannot be replaced with anything as good or better. Save it if possible. Before I could pass judgment on replacement I would have to know how much is in need of replacement.

  5. #5
    Join Date
    Aug 2007
    Location
    Hudson Valley, NY
    Posts
    5

    Default Re: plaster ceiling

    Where can I send the photos? I haven't seen a place on TOH to post photos.

  6. #6
    Join Date
    Sep 2007
    Posts
    8

    Default Re: plaster ceiling

    Remove the plaster with a crowbar, a ladder, safety glasses. Big mess, throw it out the window where the rain will wash it away. Moisture destroys plaster. Underneath you will find lathing. Replace the plaster with lightweight material of your choice that does not contain paper, sheetrock, or plaster unless you want on ongoing problem. Plaster ceilings are dangerous, and don't let anyone tell you differently. A newbie to the site, I wrote a long explanation that did not allow me to post. Have replaced 7 plaster ceilings myself. Walls are another story.

  7. #7
    Join Date
    Sep 2007
    Posts
    8

    Smile Re: plaster ceiling

    Plaster ceilings are attached to the lathing. When cracks are throughout, it is a matter of time until the heavy pieces fall. Poke it with a broom handle, and some of it will drop. If your attic has no subfloor, it is a good idea to drop roll insulation in the attic, paper side down (for the insulation) and screw up patterned tin, or a myriad of other choices, including 1/4" plywood to the lathing that could be refinished in a material of choice. Not in the mood to hire a plasterer (dying profession) every few years, but you can keep the aesthtic integrity of your home by using newer, safer and easier to use materials. Owner of a 12 room old house, I did it myself, and it works!

  8. #8
    Join Date
    Jun 2007
    Location
    Fayette County, Ohio
    Posts
    5,823

    Default Re: plaster ceiling

    Joan,
    I have to disagree with you. Neglect and lack of maintenance is what destroys plaster not a defect in material. My 1860 home still has the original plaster ceilings even though the house was not in that good a shape when we bought it. Plaster holds up 100 times better in water leaks than drywall. Just about any material will fail if not maintained properly even tin or plywood ceilings.
    Jack
    Be sure you live your life, because you are a long time dead.-Scottish Proverb

  9. #9
    Join Date
    Sep 2007
    Posts
    8

    Post Re: plaster ceiling

    Water damage can occur from broken plumbing pipes, leaky roofs, hurricane water damage, open windows in a storm, etc. Also, the plaster mixtures vary in old homes, and the skill of the tradesmen who originally installed the ceilings and created the mixes are varied. You must be really old if you are sure that your ceiling hasn't been replastered since 1890. Unless one wants to restore a home to the original for a grant to be listed on historical homes, the newer materials work much better, easier to install, can be made to look like the original, and if they fall, do not pose a threat to life and limb. Also, if the lathing is left intact, (or new lathing could be put up) the ceiling can be replastered if the homeowner chooses at a later date. Appreciating your dedication to a time worn philosophy of everything older is better, I disagree with you on this point.

  10. #10
    Join Date
    Jun 2007
    Location
    Fayette County, Ohio
    Posts
    5,823

    Default Re: plaster ceiling

    Joan,
    At least I could disagree with you without being an authoritative smart A**.
    Jack
    Be sure you live your life, because you are a long time dead.-Scottish Proverb

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