First of all, you should remove and clean the entire web and dust from the ceiling, using a vacuum cleaner. Then remove the entire old plaster or wallpaper from the ceiling. Then thoroughly put the ceiling in order. This consists in thoroughly impeating on it all errors and irregularities that will interfere with you in the future repairs. You can make such minor repairs a cement mortar or ordinary white plaster. Now let the ceiling dry a little and then you can start glue it.














