I have a house built in 1901 and I thought I had lath and plaster walls in the livingroom. The plastering job was horrid and I have no insulation so I thought I would rip out the inside of the walls, put up insulation, install new wiring, etc. and then put up drywall to help slow a fire at least a bit.
After removing the trim around the door frames I could tell I did not have what I thought for my walls. Instead, I have 3/4" shiplap (very poorly installed) covered by a very thin felt like covering and then layers of wall paper. I still want to have insulation and drywall.
The question is, can I remove the shiplap without hurting the house? If not, if I put up drywall how do I account for the added thickness when it comes to putting up the door frame trim?
Thanks for any help. I am trying to do as much as possible by myself, but know I will need others at some point. I just want to minimize that.