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We moved into a 1890s end terrace about a year ago. I suspect the previous owner had the downstairs walls skimmed with modern gypsum plaster over the original lime.
Two problems have started to occur. 1. Light brown staining to the plasterwork to the inside face of the gable end which is brick with no cavity and hence cold and 2. cracking but no staining to the plaster above radiators.
I think this is due to hygroscopic salts in the plaster and internal moisture, though perhaps I'm wrong.
But what is the best way to rectify the issue or at least keep the rooms looking presentable for a year or two? A builder recommended sanding back to bare plaster and priming with BIN primer, sealer and stain killer before repainting. I’m loathe to hack all the plaster off and get it all redone with a limelite plaster due to costs which I imagine will be extortionate.
Thanks
Two problems have started to occur. 1. Light brown staining to the plasterwork to the inside face of the gable end which is brick with no cavity and hence cold and 2. cracking but no staining to the plaster above radiators.
I think this is due to hygroscopic salts in the plaster and internal moisture, though perhaps I'm wrong.
But what is the best way to rectify the issue or at least keep the rooms looking presentable for a year or two? A builder recommended sanding back to bare plaster and priming with BIN primer, sealer and stain killer before repainting. I’m loathe to hack all the plaster off and get it all redone with a limelite plaster due to costs which I imagine will be extortionate.
Thanks
