Best tool to cut old thick rock lath plaster indoors with ...
Dec 22, 2018· The rock lath is a multi-ply surface, seems to be very popular in the 1950s to 1970s. First is a single ply of 5/8″ or 3/4″ gypsum, typically nailed to the wood framing. Next is a hand trowel layer of brown coat plaster again about 5/8″ to 3/4″ thick. This layer is hard like stucco. The final coat is a 1/8″ of eggshell or venetian ...