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Foam II Typical Physical Properties 
Polyisocyanurate Roof Insulation Panels for Hot Applications
HCFC Free "Green"Roof Insulation: Polyisocyanurate core integrally laminated to heavy black (non-asphaltic), fiber-reinforced felt facersDownload This Spec: .pdf version | .xls version | .doc version
| TYPICAL PHYSICAL PROPERTIES |
TEST METHOD |
TYPICAL RESULTS |
| Dimensional Stability (Length and Width) | ASTM D 2126 | < 2 % |
| Compressive Strength (10% Deformation) | ASTM D 1621 | 20 lb/in2 OR 140 kPa |
| Water Absorption | ASTM C 209
ASTM D 2842 |
< 1 %
< 3.5 % |
| Moisture Vapor Transmission | ASTM E 96 | < 1.5 perm OR 85.0 ng/(Pa·s·m2) |
| Product Density | ASTM D 1622 | 2.0 lb/ft3 Nominal |
| Flame Spread | ASTM E 84 (Full 10 min. Test) | 25-50** |
| Smoke Developed | ASTM E 84 (Full 10 min. Test) | 50-170** |
| Tensile Strength | ASTM D 1623 | > 730 lb/ft2 OR > 35 kPa |
| Service Temperature | - | -100 to 250 ºF OR -73 to 122 ºC |
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* The physical properties listed above are presented as typical average values as determined by accepted ASTM test methods and are subject to normal manufacturing variation. This data is offered as a service to our customers and is subject to change. ** The numerical ratings as determined by ASTM Test Method E 84 are not intended to reflect hazards presented by this or any other material under actual fire conditions. A flame spread index of 75 or less meets code requirements regarding flame spread for foam plastic roof insulation. However, flame spread values are not required for foam plastic insulation used in roof deck constructions that comply as an assembly with FM 4450 or UL 1256 (see IBC, BOCA, SBCCI, and ICBO model building codes, Chapter 26). Smoke Developed values do not apply to roofing. |
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