Fire Protection
FTI’s cellulose insulation has been tested by an independent laboratory proving that it provides an effective one (1) hour fire rating in sidewalls. It meets and / or exceeds all building requirements for single family homes and other similar structures.
For structures requiring a two (2) hour firewall, FTI-2H will accomplish while saving labor, material and jobsite waste. Click here to learn more.
FTI’s all borate fire retardant formula, which is added during the manufacturing process, slows the spread of a fire allowing more time to escape any danger.
The following table shows two key measures of how three types of insulation react in a fire: speed of “Flame Spread” and “Smoke Developed.” The lower the numbers, the better.
Flame Spread refers to the speed at which flames “spread” along the surface of the insulating material. “Smoke Developed” refers to the amount of smoke that is produced while the product burns. In most house fires, it is not the flames which cause serious personal injury but rather smoke inhalation. Smoke also increases confusion during a crisis and obscures important fire exits.
Insulation Type |
Flame Spread |
Smoke Development |
|---|---|---|
| FTI cellulose Insulation | ≤5 | 5-15 |
| Fiberglass | ≤5 | ≤50 |
| Open Cell Foam | 25 | <450 |
Note: The ASTM standard “Passing” for Flame Spread is <25 and for Smoke Development is <450. Clearly, FTI’s cellulose insulation outperforms the other products even though all three “pass”.













