|
EPS Insulation
EPS
Properties |
Property |
|
1.0# |
1.25# |
1.5# |
2.0# |
| Nominal Density |
lb/ft 3
(kg/m 3) |
|
1.00
(16) |
1.25
(20) |
1.50
(24) |
2.00
(32) |
| Density 1, min. |
lb/ft 3
(kg/m 3) |
|
0.90
(15) |
1.15
(18) |
1.35
(22) |
1.80
(29) |
| Design Thermal Resistance
per 1.0 in. thickness |
75ºF |
ºF•ft
2•h/Btu
(ºK•m 2/W) |
|
3.85
(0.68) |
3.92
(0.69) |
4.17
(0.73) |
4.35
(0.77) |
40ºF |
ºF•ft
2•h/Btu
(ºK•m 2/W) |
|
4.17
(0.73) |
4.25
(0.75) |
4.55
(0.80) |
4.76
(0.84) |
| Thermal Resistance 1,min.,
per 1.0 in. thickness |
75ºF |
ºF•ft
2•h/Btu
(ºK•m 2/W) |
|
3.60
(0.63) |
3.80
(0.67) |
4.00
(0.70) |
4.20
(0.74) |
40ºF |
ºF•ft
2•h/Btu
(ºK•m 2/W) |
|
4.00
(0.70) |
4.20
(0.74) |
4.40
(0.77) |
4.60
(0.81) |
| Compressive strength
1 @10% def., min. |
psi
(kPa) |
|
10.0
(69) |
13.0
(90) |
15.0
(104) |
25.0
(173) |
| Flexural
strength 1, min. |
psi
(kPa) |
|
25.0
(173) |
30.0
(208) |
40.0
(276) |
50.0
(345) |
Water Vapor Permeance
1 of 1.0 in. thickness,
max., perm |
|
5.0 |
3.5 |
3.5 |
2.0 |
| Water Absorption 1 by
total immersion, max., volume % |
|
4.0 |
3.0 |
3.0 |
2.0 |
| Oxygen Index 1 min.,
volume % |
|
24.0 |
24.0 |
24.0 |
24.0 |
| Flame Spread 2 |
|
20 |
20 |
20 |
20 |
| Smoke Developed 2 |
|
150-300 |
150-300 |
150-300 |
150-300 |
|
