# composite construction db defined in ../dbs/radmodel.constrdb
# based on materials db ../dbs/radmodel.materialdb
    1     # no of composites 
# layers  description   optics name   symmetry tag
    1    ply           OPAQ  OPAQUE        SYMMETRIC     
# mat ref thickness (m) mat descr & air gap R
   70    0.0200  Plywood
