Reference Codes
| MAF Roof Structure Codes | |
| Code | Description |
| 00 | None |
| 01 | Flat |
| 02 | Shed |
| 03 | Gable or Hip |
| 04 | Wood Truss |
| 05 | Sawtooth |
| 06 | Mansard |
| 07 | Gambrel |
| 08 | Irregular |
| 09 | Rigid Frame w/Bar Joist |
| 10 | Steel Frame or Truss |
| 11 | Bowstring Truss |
| 12 | Reinforced Concrete |
| 13 | Prestress Concrete |