hi guys just asking u my stupid daily question... is there a limit to how much a ceiling can hold ... ie i went to look at a mates ceiling as it has loads of hairline cracks ... the ceiling is 9.5 mm plasterboard then it was artexed then someone else has skimmed over the artex now he wants me to reskim over the last skim . can you just carry on covering over it or have they a limit ... did u understand all that