System Type | Class 1 Rating | Firestone Preferred Insulation* | Firestone Preferred Edge Metal** | Maximum Points Per Square Foot |
Single-Ply EPDM or TPO | 5 | 3 | 2 | 10 |
Asphalt APP or SBS | 5 | 3 | 2 | 10 |
BUR | 2 | 3 | 2 | 7 |
Metal Roofing Panels (UC-3, UC-4, UC-6, UC-14) | 20 | 0 | 0 | 20 |
* Includes: ISO 95+, ISO 95+ Tapered, HailGard |
**Includes: UNA-EDGE. AnchorGard, EdgeGard, UNA-CLAD Metal (Factory or Contractor fabricated) |