Section 27-321. Use of combustibles


Latest version.
  • The  use  of  combustible component
      materials in units or assemblies shall be limited to construction  group
      II,  except  as hereinafter expressly permitted in construction group I.
      Combustible aggregates may be integrated with other materials to form  a
      noncombustible material provided that the entire mixture, in the form in
      which  it  is  to be used in construction, meets the requirement of this
      code for noncombustibility.