5.1 Boardstock Air Barrier – Rigid Cellular Thermal
Insulation Board
Material specification, D-115-010 Rev. 14, 6/1/2015
| Property | Test Method | 2015 Standard (3 Tests) |
| Standard Specification | Polyisocyanurate: ASTM C1289-12e1 |
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| Polystyrene: ASTM C578-12a |
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| Air Permeance | ASTM E2178-11 | |
| Assembly Air Leakage | ASTM E2357 | |