Masonry is a low-cost, energy efficient, easily constructed and
aesthetically pleasing building technique in which short logs are
laid widthwise within a special mortar matrix. Walls are usually 16 to 24 inches thick. Separating the 4-inch interior
and exterior mortar beds is an 8-inch bed of sawdust insulation.
The R-value of a cordwood wall is about R-25. The thermal mass of
the walls perfectly accommodates passive solar home design. All
SMC structures are Cordwood or Strawbale.