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Evaluation
The product conforms to CAN/ULC-S702-09, Type 1. The design thermal resistance values of the product at various design thicknesses are listed in Table 1.1. The design thicknesses referenced below are manufactured at all plants except where noted.
| Design Thickness ( mm ) | Design RSI (m2 . K/M) |
|---|---|
| 65 | 1.4 |
| 89 | 2.1 |
| 92 | 2.1 |
| 89 | 2.47 |
| 92 | 2.47 |
| 140 | 3.87 |
| 152/140 | 3.5/3.34 |
| 159 | 3.5 |
| 152 | 3.96 |
| 152 | 4.2 |
| 140 | 4.2 |
| 216 | 4.9 |
| 178 | 4.9 |
| 235 | 5.4 |
| 241 | 5.4 |
| 254 | 6.1 |
| 267 | 6.1 |
| 279 | 7.0 |
| 300 | 7.0 |
| 380 Footnote 2 | 8.8 |
| 406 | 9.5 |
Standard
| Property | Requirement |
|---|---|
| Length | −1 %, +3% for batts and rolls |
| −3 mm, +10 mmfor boards and sheets | |
| Width | −0%, +3% for batts and rolls |
| ±3 mmfor boards | |
| Thickness | Mean thickness ≥ the design thickness and none of the individual specimen thicknesses < 90% of the design thickness |
| −1 mm, +3 mm for boards | |
| Thermal resistance | Mean thermal resistance ≥ the design thermal resistance (as stated on the product) |
| Thermal resistivity | > 18.5 (m · K)/W |
| Surface burning characteristics | For Type 1 products not intended for exterior of basement walls: Flame-spread classification must not exceed 25; smoke-developed classification must not exceed 50. |
| For Types 2 and 3 products, the test values must be reported without reference to the acceptance criteria. | |
| Smoulder resistance | Applicable only to Type 1 products, not intended for exterior of basement walls. Mean mass loss ≤2% and each specimen ≤3% . Smoulder zone must not reach specimen periphery. |
| Breaking load of exterior frame wall sheathing | Not applicable to batts or rolls |
| ≥ 2.7 kg. Applicable only to Type 2 boards for exterior frame wall sheathing | |
| Compressive resistance of draining insulation | Not applicable to batts or rolls |
| Applicable to draining insulation only. Compressive resistance for a 38 mm or thicker draining insulation must be at least 7 kPa at 10% deformation and for thinner than 38 mm it must be at least 10kP at 25% deformation. | |
| Water vapour permeance | Batts and rolls: not applicable for Type 1 products |
| > 300 ng/(Pa · s · m 2) for Type 2 products | |
| < 60 ng/(Pa · s · m 2) for Type 3 products | |
| Boards: applicable to adhered membrane/insulation or to non-adhered membranes | |
| Corrosiveness | Applicable to Type 1 batts and rolls |
| Boards: corrosion ≤ control | |
| Fungi resistance | Applicable to Type 1 batts and rolls |
| Boards: growth ≤ comparative item |