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Curved stairway ceiling

Discussion in 'Plastering and Rendering' started by orval, 8 Nov 2012.

  1. orval

    orval

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    Hi,

    I'm going to be ripping out a bit of old ceiling above my stairs. There's not enough headroom for my liking and there's a cupboard in the bathroom above, from which I can steal some space.

    I'm planning to have an outward (convex) curve on this bit of ceiling. Basically I want a single smooth run from the wall you look at when standing at the top of the stairs, down to the ceiling below.

    I will be getting a plasterer in to skim, but I'm doing all the boarding-out in the house.

    What is the best/preferred way to do this?

    Should I try to dampen and bend plasterboard? Or perhaps use some kind of mesh and bonding coat?

    Thanks
     
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  3. roughcaster

    roughcaster

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    You could use dampened plasterboard, although it's hard to say without seeing the job. Wire lath would be a great way to do it, but it's a different kettle of fish,, a lot involved. If your plasterer is up to it, that's the way i'd go. I'd also leave it all for him to prep.
     
  4. orval

    orval

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    Here's the job:


    I want to remove that nasty angle and have a nice smooth curve.
     
  5. stevethespreader

    stevethespreader

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    im not sure of how big a curve you want as there are a few ways to acheive this, depending on the boards and what angle the 2 boards meet and how extreme or big you want your curve, but if you are considering dampening down boards to curve them you may want to get gyprock flexible boards that are made for such an application, also roughcasters right its best to see the job first if you put some pics up, you will get some feed back on how to best go about it http://www.gyprock.com.au/our-products/products/plasterboard/gyprockâ„¢-flexible-plasterboard.aspx
     
  6. stevethespreader

    stevethespreader

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    looking at your pic you have the same lay out as me exept that your bathroom is our bedroom and there is a box on the otherside of the room to hide the slope, but i have a nice curve lol on my angle, looking at that pic i would shape a curve thats something your pasterer can do just tell him you want a curve
     
  7. orval

    orval

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    Yeah there's a box. I'll be making a bigger one.

    There is likely to be a delay between doing the boarding-out and the plastering, with all the other stuff I have to do. Therefore I don't want to wait for the plasterer because there'll be a hole straight through into the bathroom! Not very private ;)

    I did find that Australian website. Can you get it in the UK?
     
  8. stevethespreader

    stevethespreader

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    sorry lafarge do one heres the link http://www.siniat.co.uk/products/gtec-board/gtec-contour-board/?overview=1 but its not very thick you only need a tight curve on the end i wouldent bother with it
     
  9. stevethespreader

    stevethespreader

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    how tall are you?
     
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  11. orval

    orval

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    6 foot. And I can't walk downstairs without having to duck.
     
  12. orval

    orval

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    Did some measuring. The radius of curvature required is 760mm.
     
  13. stevethespreader

    stevethespreader

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    tbh if it was my hallway and i was reboarding i would do straight edges and have 2 stop beads you have to angles to make the top and bottom of the slope, im not sure i would go to the bother of bending boards to make a curve i would create a curve using bonding if i was having a curve, i have some pics of my hallway on my pc somewhere which is near enough identical ill upload them later for you too have a look, you should be consulting your spread about this
     
  14. orval

    orval

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    Good point. I don't need a curve really I suppose. It's not obvious from the photo but what is there already is part curved.

    I've not arranged a plasterer yet. Perhaps I'll just block the hole through the bathroom wall temporarily and leave it up to him (or her.)

    Just a question about the stop beads: Would you have these on the vertical and horizontal surfaces? This would mean the skim on the angled surface would meet the back of the stop beads, right?
     
  15. orval

    orval

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    Or how about two 135 degree angle beads?
     
  16. stevethespreader

    stevethespreader

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    if your going to use beads use stop beads ive uploaded some pics of my hallway and the curve you are trying to achieve i dident skim the curves but made them look better by reforming them as you can see the rest of the hallway was skimmed ive also included an example of what stop beads look like but in a different hallway done by an old work m8, and also an example of some curved work i have done but only friends can see them as my profile is private ive added you as friend so you can see them you can delete friendship if you so wish afterwards
     
  17. orval

    orval

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    Nice one, thanks.

    I prefer the angles actually, so I'm scrapping the curve idea. I quite like the neat edges with those stop beads though, so I'll probably go for that.
     
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