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From [Institution name]
Property | Requirement |
---|---|
Length | –1%, +3% for batts and rolls |
–3 mm, +10 mm for boards and sheets | |
Width | –0%, +3% for batts and rolls |
± 3 mm for 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 3 products, the test values must be reported without reference to the acceptance criteria. |
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 10 kPa at 25% deformation. | |
Water vapour permeance | ≤ 60 ng/(Pa·s·m2) for Type 3 products |
Boards: applicable to adhered membrane/insulation or to non-adhered membranes | |
Corrosiveness | Boards: corrosion ≤ control |
Fungi resistance | Boards: growth ≤ comparative item |