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| R-Control EPS Properties |
| Property |
Type
XI |
Type
I |
Type
VIII |
Type
II |
Type
IX |
Type
XIV |
| Nominal Density |
lb/ft3
(kg/m3) |
0.75
(12) |
1.00
(16) |
1.25
(20) |
1.50
(24) |
2.00
(32) |
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| Density1, min. |
lb/ft 3
(kg/m3) |
0.70
(12) |
0.90
(15) |
1.15
(18) |
1.35
(22) |
1.80
(29) |
2.4
(38.4) |
Design Thermal Resistance
per 1.0 in. thickness |
75ºF |
ºF•ft2•h/Btu (ºK•m2/W) |
3.22
(0.57) |
3.85
(0.68) |
3.92
(0.69) |
4.17
(0.73) |
4.35
(0.77) |
4.35
(0.77) |
| 40ºF |
ºF•ft2•h/Btu (ºK•m2/W) |
3.43
(0.60) |
4.17
(0.73) |
4.25
(0.75) |
4.55
(0.80) |
4.76
(0.84) |
4.76
(0.84) |
Thermal Resistance1,min.,
per 1.0 in. thickness |
75ºF |
ºF•ft2•h/Btu (ºK•m2/W) |
3.10
(0.55) |
3.60
(0.63) |
3.80
(0.67) |
4.00
(0.70) |
4.20
(0.74) |
4.20
(0.74) |
| 40ºF |
ºF•ft2•h/Btu (ºK•m2/W) |
3.30
(0.58) |
4.00
(0.70) |
4.20
(0.74) |
4.40
(0.77) |
4.60
(0.81) |
4.60
(0.81) |
Compressive strength1
@10% def., min. |
psi
(kPa) |
5.0
(35) |
10.0
(69) |
13.0
(90) |
15.0
(104) |
25.0
(173) |
40
(256) |
Flexural strength1,
min. |
psi
(kPa) |
10.0
(69) |
25.0
(173) |
30.0
(208) |
35.0
(276) |
50.0
(345) |
60
(414) |
Water Vapor Permeance1
of 1.0 in. thickness,
max., perm |
5.0 |
5.0 |
3.5 |
3.5 |
2.5 |
2.5 |
Water Absorption1
by total immersion,
max., volume % |
4.0 |
4.0 |
3.0 |
3.0 |
2.0 |
2.0 |
Oxygen Index1
min., volume % |
24.0 |
24.0 |
24.0 |
24.0 |
24.0 |
24.0 |
| Flame Spread2 |
20 |
20 |
20 |
20 |
20 |
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| Smoke Developed2 |
150-300 |
150-300 |
150-300 |
150-300 |
150-300 |
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1 See ASTM C-578 Standard Specification for complete information
2 See UL Certificate AFM-1 available from R-Control Building Systems |
Download a PDF file of our EPS brochure.
Download a PDF file of our EPS Product Testing Chart.
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