1000 - Insulation
2000 - Lumber
2500 - Sealants
3000 - Underlayment
4000 - Flashing
5000 - Shingles
                      - Starter
                      - Cap
                      - Laminates
6000 - Rolled Modified
                  - Self Adhesive
                      - Mop Down
                      - Torch Down
7000 - Ventilation
8000 - Fasteners