|
Typical Design Values |
PS•3000 |
PS•4000 |
PolyPro |
|
Expanded Polystyrene
Density |
1.5 lbs. / cu. ft. |
1.5 lbs. / cu. ft. |
1.5 lbs. / cu. ft. |
|
Average thickness of
EPS |
2.4" per side (6" core);
2.5" per side (8" core);
3.0" per side (10" core) |
2.5" per side |
2.5" per side |
|
R-Value of 1.5 lb. / cu
ft EPS |
4.17 / inch |
4.17 / inch |
4.17 / inch |
|
K-Factor of 1.5 lb. /
cu ft EPS |
0.24 / inch |
0.24 / inch |
0.24 / inch |
|
Average R-Value Per
Form |
20-25 (See Effective
R-Value) |
22 (See Effective
R-Value) |
22 (See Effective
R-Value) |
|
Thermal mass with
concrete |
56 lbs. /sq. ft.
(6" core),
76 lbs. /sq. ft. (8" core),
100 lbs./sq. ft. (10" core) |
72 lbs. /sq. ft. (6" core),
96 lbs. /sq. ft. (8" core) |
12 lbs. /sq. ft. per inch of core
thickness |
|
Air Infiltration
Comparison |
25% versus wood frame |
25% versus wood frame |
25% versus wood frame |
|
*Effective R-value for
PolySteel Wall |
R26 to R50+ |
R26 to R50+ |
R26 to R50+ |
|
Water absorption
(volume) |
Less than 3% (ASTM
C272) |
Less than 3% (ASTM
C272) |
Less than 3% (ASTM
C272) |
|
Water Vapor |
0.93 perms per 1.5" (minimum) |
0.56 perms per 2.5" (minimum) |
0.56 perms per 2.5" (minimum) |
|
Water Vapor / Permeance |
1.27 perms per inch |
1.27 perms per inch |
1.27 perms per inch |
|
Sound class |
48 with 1/2"
drywall |
57 minimum (6" core) |
57 minimum (6" core) |
|
Fire Wall |
4 hours, without the
addition of any wall coverings to assist in its
performance |
4 hours, without the
addition of any wall coverings to assist in its
performance |
TBD |
|
EPS compressive
strength |
15-21 psi (10%
deformation) |
15-21 psi (10%
deformation) |
15-21 psi (10%
deformation) |
|
Concrete compressive
strength |
2,500 psi (typical) |
2,500 psi (typical) |
2,500 psi (typical) |
|
Concrete pouring
temperature |
Down to 0°F (-18° C) |
Down to 0°F (-18° C) |
Down to 0°F (-18° C) |
(Adobe® Acrobat files)
