Plastering over steel

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The Lake Governor
If as you say there are joists running parallel and close to the steel then use 6mm contour board fixed only to the joists. The steel will expand and contract at a different rate to the surrounding timbers and fixing to it will cause cracks for sure.
I would run a strip of fireboard or two over the top of steel and fix to the timbers either side and bead both edges and skim. I wouldn't bother too much about the step in the ceiling as long as it's protected with fireboard it's all good.


Well-Known Member
I didn't get the job, priced £860.00 for all walls removal of wooden beading, general patch and skim ceiling patched and to sort steel out.


New Member
I'd of stuck some 6mm cement board on,prob no more ply,with there glue,sticks like baby shite to a blanket,then scrimed both edges, skimmed,got paid,changed me phone number and run like the clappers :)
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