PRODUCT SPECS
Fire Resistance Overview
StackWall precast fencing demonstrates exceptional fire resistance, achieving:
- 6-hour structural
- No surface ignition
- Low heat transmission
- Compliance with reinforced concrete fire standards
Ideal for wildfire-prone regions & commercial applications requiring tested fire protection.
Fire Resistance Testing Summary (ASTM E-119)
| Product Tested: | StackWall precast concrete panels & slotted posts |
| Testing Authority: | PO Labs — Certificate of Analysis #142088a |
| Test Date: | July 10, 2025 |
1. Structural Integrity
| Result: | Passed |
| Rating: | 6-hour minimum fire resistance |
| Details: | Full wall assembly (front panel, back panel, & posts) maintained integrity with no structural failure after six hours of direct flame exposure. |
| Visual Impact: | Only slight discoloration; no material compromise. |
2. Surface Flammability — Cotton Ball Ignition Test
| Result: | Passed |
| Rating: | 6-hour minimum |
| Details: | Cotton balls placed on the outer (non-fire-exposed) surface showed partial charring but did not ignite—indicating the wall does not promote surface fire spread. |
3. Heat Transmission (wall Surface Test - ASTM 8.3.4.3)
| Result: | Passed |
| Rating: | 106 Minutes |
| Details: | Heat on the non-exposed surface did not exceed 2500F (1390C) above baseline temperature during the test. |
4. Heat Transmission (Reinforced Concrete Criteria - ASTM 8.5.5)
| Result: | Passed |
| Rating: | 6-hour minimum |
| Details: | StackWaIl uses fiberglass rebar, not steel, the test confirmed that internal temperatures remained below 6490C (12000F) at all measured points. This demonstrates that the panel composition & reinforcement materials successfully prevented excessive heat transfer under ASTM reinforced element criteria. |