August 3, 2020
Modern application of stucco was doomed because:
  • energy efficiency reduced the energy available to dry walls that became wet
  • loss of vapor transmission of the stucco once polymers were added
  • transition to OSB from plywood and board sheathing before that
  • loss of water repellency of modern building papers
None of those things are going away. So stucco is doomed. Unless. UNLESS. Unless you add a gap to control hydrostatic pressure and promote drying!
 
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