USA Premium Foam has a flame spread of 5, and its smoke development is 0. For those reasons, USA Premium Foam is a Class 1-rated material against fires and does not emit hazardous gasses when exposed to heat of fire. This is the highest rating an insulation product can receive for residential and commercial applications and the fire rating does not deteriorate with age. Our Foam contributes no fuel in the event of fire and it will not sustain flame upon removal of the flame source.
| Class 1-rated material against fires | Flame Spread | Smoke Development | |
| USA Premium Insulation | Yes | 5 (lower is better) | 0 (lower is better) |
| Cellulose - Loose | Yes | 10-25 | 0 |
| The "Other" Retrofit Foam | No | 25 | 40 |
| Rockwool – Loose | No | 5 | 0 |
* Approximate value. May vary based on exact product and installation.
** Based on an actual 2" by 4" stud.
"We had three homes, and all three were insulated by USA Insulation. It's the best thing we have ever done. If we ever have to move we would do it again with USA Insulation."
Mr. & Mrs. Peck