Use
The Life Safety Code (NFPA 101) and Section 803.1 of the International Building Code limit finishes for interior walls and ceilings to materials in three classes (A, B, or C, with A being the lowest flame spread and C being the highest) and gives greater restrictions for certain rooms:
| Class | Flame Spread Index |
|---|---|
| A | 0-25 |
| B | 26-75 |
| C | 76-200 |
In order to meet classification in any of the three categories, the smoke developed index cannot exceed 450.
Read more about this topic: Flame Spread
Famous quotes containing the word use:
“... it is use, and use alone, which leads one of us, tolerably trained to recognize any criterion of grace or any sense of the fitness of things, to tolerate ... the styles of dress to which we are more or less conforming every day of our lives. Fifty years hence they will seem to us as uncultivated as the nose-rings of the Hottentot seem today.”
—Elizabeth Stuart Phelps (1844–1911)