Hi blue_skies, thanks for your replies. my walls feel dry enough to me.... cold though. some yellow spots here and there, perhaps are moulds but not really as bad as my wardrobe and dressing cabinets which have really full grown mould As wife is pregnant now, old folks' tale says cannot paint here, paint there so im quite at a loss. did you encounter these mould bugs? do you know if they are dangerous? or can the infestation get really bad? i tried to feed my finger to them, realized they dont bite or climb on my fingers so i am hoping they dont bite humans. other than being black spots on my white walls, they havent been that disruptive to my life. any ideas whether they could become dangerous to health? thanks.