Chad Fabry Posted January 31, 2014 Report Share Posted January 31, 2014 This is the oldest wall board I've seen ( that I know of). The building was in built in 1860 and remodeled after a fire in 1922. Click to Enlarge 57.46 KB Quote Link to comment Share on other sites More sharing options...
John Kogel Posted January 31, 2014 Report Share Posted January 31, 2014 Where these the 16" strips? What we call gypsum lath up here? I have only seen that in post-1950 houses. Quote Link to comment Share on other sites More sharing options...
Neal Lewis Posted January 31, 2014 Report Share Posted January 31, 2014 The rock lathe is pretty typical of 1930's and newer houses in NJ. Usually can see the typical bulging on the individual panels, apparently due to insufficient number of fasteners. Quote Link to comment Share on other sites More sharing options...
Chad Fabry Posted January 31, 2014 Author Report Share Posted January 31, 2014 These sheets are four-feet wide. For the benefit of neophytes and I'm sure its a typo- but I see it a lot- Lath is the strips of wood or gypsum or wire mesh that supports plaster. A lathe is a tool one uses to make balusters, bowls and billy clubs. Quote Link to comment Share on other sites More sharing options...
Bill Kibbel Posted February 1, 2014 Report Share Posted February 1, 2014 I found Celotex (fiberboard made from bagasse - the waste pulp from sugercane processing) used for backing of the plaster walls in a large home built in 1922. Here's a picture of a label, but this is from a later building. Click to Enlarge 37.71 KB Quote Link to comment Share on other sites More sharing options...
John Kogel Posted February 1, 2014 Report Share Posted February 1, 2014 Thanks. I had no idea they were turning out 4 foot sheets in that era. Quote Link to comment Share on other sites More sharing options...
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