How to ppreserve coving when knocking down a lath and plaste

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Hi everyone! Would be grateful for any information/ideas - I want to have a lath & plaster wall knowcked down to join 2 rooms together - will then fix RSJ. Both sides of the wall have coving I wish/need to preserve - any mehtods for doing this when the walls are knocked down? thanks
 
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Why the need for an r.s.j. when removing a stud partition? :confused:

I appreciate that some stud walls offer support in rare situations, but i can't imagine a lathe and plaster wall doing so?
 
I understand what your saying but I am in a block of flats and structural engineer has calculated the RSJ and Building Reg require it.
 
I've just done this, but only pulling off one face of a L&P wall - not quite what you are up to. I found that the plaster coving is of a much greater solidity than the L&P so found that the L&P just fell away whereas the plaster stood soundly. The plaster and L&P sort of overlapped each other just beneath the coving line, and I was able to use a bolster and hammer to cut this back to the laths. I statrted gingerly, but by the end found you could be quite assertive with it. This enabled me to cut a fairly straight line to put my plasterboard up to, right at the bottom of the coving detail.

Start the first cut about 20mm beneath the coving and work upwards from there until you are comfortable with it. Hope yours holds up like mine did!!
 
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Thanks for the info. about your job - I had been thinking the best way was to try to cut across the plaster with a saw (?) underneath the coving the length of the wall so that bringing down the wall minimizes the impact on the coving.
 
I hadn"t thought of that myself. Sounds like a very good idea.

another tip is to lay Correx on the floor and tape it together. It makes getting the L&P into rubble sacks much easier, and much kinder to the floor. we used plastic dust sheets on our first wall and really underestimated the weight of L&P, which tore right through them.
 

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