I have lathe and plaster in my house. It sucks. Might be fine in Calleeforneeah but up here in the Great White Freeze-Thaw North, it sucks. Every time I do my back exercises I see the cracks and wonder why they used plaster when gypsum board was available, easier, cheaper and easily repaired or altered in future. Not one crack in Mum's house next door... 3/8ths GB.