jaydubzhb t1_it2mn5b wrote on October 20, 2022 at 2:18 PM Reply to Just moved into a prewar… these walls mystify me (help needed) by b7d Based on stud finder plaster and lath. If you are really lucky though you have some old school pyrobar, fire resistant gypsum block. Let me tell you how fun that is. https://oldstructures.nyc/2016/01/25/before-gyp-board/ Permalink 2
jaydubzhb t1_it2mn5b wrote
Reply to Just moved into a prewar… these walls mystify me (help needed) by b7d
Based on stud finder plaster and lath.
If you are really lucky though you have some old school pyrobar, fire resistant gypsum block. Let me tell you how fun that is. https://oldstructures.nyc/2016/01/25/before-gyp-board/