| Flame Spread | Flame spread indicates the surface burning characteristics of building materials when tested in accordance to ASTM-E-2768. The range for the flame spread is from 0 to 200. The lower the smoke density number the more fire resistant the material is considered to be. |
|---|---|
| Class A | Defines materials with flame spread of 0-25. Material in this range is considered to be noncombustible. |
| Class B | Defines materials with flame spread of 26-75. |
| Class C | Defines materials with flame spread of 76-200. |
| Smoke Density | Indicates the amount of smoke generated by the materials during the ASTM-E-2768 test. The range for the smoke developed is from 0 to 500. The lower the number, the less amount of smoke the material is generating. |
Resources
Starrco offers a DL noncombustible panel construction for modular systems. The DL panels have been tested in accordance to ASTM-E-2768 (copies of the laboratory tests are available upon request):
| Product | Flame Spread | Smoke Density |
|---|---|---|
| SS3000-DL Panel | 5 | 10 |
| SS3500-DL Panel | 5 | 10 |
The other components of a Starrco Pre-Engineered office, i.e. suspended ceiling, dust cover, steel door and windows, are noncombustible. Incorporating the DL panels into the office design will create a modular system in which all the components are noncombustible.
Starrco’s standard (SP) panels consist of 1/8″ vinyl covered hardboard (with Class C rating) laminated to both sides of a Class A polystyrene core.
Starrco’s sound control (SC) panels are manufactured with all Class C substrate materials laminated to both sides of a Class A polystyrene core.
Fire ratings defined by a time limit (like one or two-hour fire rated) generally do not apply to Pre-Engineered offices. Rated walls are normally used to separate one area from another or to protect entrance and exit points between areas.