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  • 1/8” layer of clay loam soil
  • fire protection between
  • layers of Dowel Laminated
  • Timber (DLT).

  • (Background) 1/4” layer of
  • clay loam soil as fire
  • protection over Dowel
  • Laminated Timber (DLT).

  • Image credit: 
  • Jana VanderGoot, 2022