our house is 100 yrs. old and has horse hair plaster in every room we havent gutted. i tore the ceiling out of the kitchen yesterday with the intention of leaving the joists exposed. the house is a brick twin and i would love to expose the brick also however there is no shared brick wall in the kitchen all exterior and two lathe and plaster wallsthat are open from the bottom of joists upto the floor planks. any advice on how to finish between each joist or a way to have it look rough but finished, anybody thats done what im doing? all advice welcome. thanks