Technical Performance Data

Design criteria for the structural concrete wall system.....ACI 318 design standards for straight wall concrete construction
Fox Blocks Installation Manual.....Second Edition (June 2007)
Prescriptive Method for Residential ICF Construction.....EB118.02 Second Revision (Revised)
Average weight of the reinforced structural concrete.....150 lbs. / cu. ft. (including steel reinforcement)
Thermal Mass (form & 4" reinforced concrete core).....50 lbs. / sq. ft.
Thermal Mass (form & 6" reinforced concrete core).....75 lbs. / sq. ft.
Thermal Mass (form & 8" reinforced concrete core).....100 lbs. / sq. ft.
Recommended concrete core compressive strength.....Minimum 3000 psi for the walls (minimum 2500 psi for footings)
Recommended concrete core slump flow for pump mix design......4" ICF - 6" to 7", 6" ICF - 5.5" to 6.5" & 8" ICF - 5" to 6"
Recommended aggregate size for the concrete mix design.......4" ICF - 3/8" max., 6" ICF - 3/8" to 1/2" max. & 8" ICF - 1/2" to 3/4" max.
Recommended concrete consolidation......Internal vibration (see Installation Manual & ACI 318)

EPS Foam Resin (BASF, Huntsman, Nova & Samsung EPS Materials).....Modified low pentane, B/C bead size (resin is self-extinguishing, but when burning, emits less than half the toxins of burning wood)
EPS Average Manufacturing Density / Type..... 1.5 lbs. / cu. ft. (Type II, Rigid Cellular EPS Foam Plastic)
ASTM C578, EPS Thermal Insulation Testing Criteria:
- Density, ASTM C303
- Thermal Resistance, ASTM C518, ASTM E2634
- Compressive Resistance, ASTM C165, Proc. A
- Flexural Strength, ASTM C203
- Water Vapor Permeability, ASTM E96
- Water Absorption, ASTM C272
- Dimensional Stability, ASTM D2126
- Oxygen Index, ASTM D2863

Flammability (UL723 & ASTM E84)
- Flame Spread of the EPS Foam.....less than 25
- Smoke Development of the EPS Foam......less than 450
- Toxicity of the EPS Foam resin.....24
Fire Burning Characteristics of Plastic Ties
- ASTM D1929, Flash Ignition Temp.......350 (C) 662 (F)
- ASTM D1929, Spontaneous Ignition Temp.....400 (C) 752 (F)
- ASTM D635, Burn Rating Average Time........17.7 mm / min
- ASTM D2843, Smoke Density Rating.....7.3
Fire Resistance Rating, ASTM E119 [equivalent Standard Test Methods]
- 4" Concrete Core (in the Foam / Plastic ICF)......2 hrs. +
- 6" Concrete Core (in the Foam / Plastic ICF)......3 hrs. +
- 8" Concrete Core (in the Foam / Plastic ICF)......4 hrs. +
- [Fire Endurance Test of Building Construction Materials, CAN / ULC S101]
- [Fire Tests of Building Construction Materials, NFPA 251]
- [Fire Tests of Building Construction Materials, UL 263]
- [Uniform Building Code Standard, UBC 7 - 1 - 94]
Room Fire Test, UL 1715 / UBC 26 - 3.....Passed (with 1/2" gypsum board)

Thickness of the EPS.....2.625" / wall panel (5.25" total EPS thickness)
EPS Steady State R-Value (thermal resistance of the material).....R - 24 (R - 4.55 / inch @ 40 degrees Fahrenheit)
EPS K-Factor (thermal conductivity of the material).....K -.22 / inch @ 40 degrees Fahrenheit
Air Leakage (infiltration rate).....0.05 to 0.10 ACH (average air changes / hour)
Equivalent Effective R-Value Performance, ASTM C1363......Pending, expecting a R - 32 + (equivalent thermal resistance performance calculating the stabilizing effects of the thermal mass of the concrete core, the thermal wicking and low air infiltration)

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