Expanded Polystyrene Density:

1.5lbs/cu.ft.

Average thickness of EPS:

2.5" / panel (5" total)

Steady State R-value:

R-21 foam value

Effective R-value:
(concrete, form, air infiltration, and thermal mass)

R-24 to R-50

U-value:

U-0.048

Actual R-value:

4.4 Per inch of EPS

Thermal Mass:
(form & concrete)

6" core: 72lbs/sq.ft.

8" core: 96lbs/sq.ft.

K-Factor:

.24 Per inch of EPS

Water Absorption:

Less than 3% (ASTM C272)

Water Vapor:

0.56 perms per 2.5"

Sound Class:

STC Sound Class rating of 54 with 1/2-inch sheet rock both sides

STC Sound Class rating of 51 with 1/2-inch sheet rock one side

Fire Wall:

Fire wall rating 5,000 to 12,000 lbs per lineal foot for 3 hours.

Concrete Compressive Strength:

3000 psi

Concrete Pouring Temperature Range:

Down to 0°F (-18°C)