I purchased a hundred year old house 5 years ago. The dining room has a "tin" ceiling. It was obvious when I bought it that the ceiling was painted to hide the fact the old paint was chipping. We have remodeled most of the interior and are about to start the dining room. We would like to try and keep the tin ceiling. The paint is chipping, chips fall daily. We would like to repaint it but I’m not sure what is best to strip what’s remaining. I would like to be careful as not to loosen up the metal ceiling by using harsh techniques. I've tried paint strippers on other projects but never got good results. What is the best way to remove the remaining paint? I'm also not sure the type of metal it is. I know it's not copper or aluminum.