Taking down the lath and plaster is going to take a while. If the ceilings weren’t so high it might be easier. With 12 foot ceilings you have to use a ladder or scaffolding. Scaffolding is much safer. Every time we complete a section we are forced to clean up everything so we can move the scaffolding to the next area to be taken down. At least it wasn’t freezing in the house. Wonderful December weather.