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410 EXPANDED POLYSTYRENE (EPS) WARM DECK ROOF INSULATION
• Standard: To BS EN 13163.
• Manufacturer: Contractor's choice.
- Product reference: site specific.
• Grade: As insulation manufacturer's recommendations for the traffic loading.
• Recycled content: Submit proposals.
• Edges: Rebated.
• Thickness: site specific.
• Facing: Factory bonded foil upper face.

415 EXTRUDED POLYSTYRENE (XPS) WARM DECK ROOF INSULATION
• Standard: To BS EN 13164.
• Manufacturer: Contractor's choice.
- Product reference: site specific.
• Grade: As insulation manufacturer's recommendations for the traffic loading.
• Edges: Rebated.
• Thickness: site specific.
• Facing: Factory bonded foil upper face.

425 MINERAL WOOL (MW) WARM DECK ROOF INSULATION
• Standard: Roofing grade to BS EN 13162.
• Manufacturer: Contractor's choice.
- Product reference: site specific.
• Grade: As insulation manufacturer's recommendations for the traffic loading.
• Recycled content: Submit proposals.
• Edges: Rebated.
• Thickness: site specific.
• Facing: Glass tissue.

440 EXTRUDED POLYSTYRENE (XPS) INVERTED ROOF INSULATION
• Standard: To BS EN 13164.
• Manufacturer: Contractor's choice.
- Product reference: site specific.
• Grade: As insulation manufacturer's recommendations for the traffic loading.
• Edges: Rebated.
• Thickness: site specific.
• Integral topping: site specific.

460 STONE BALLAST
• Type: site specific.
• Supplier: Contractor's choice.
• Size: site specific.
• Colour: site specific.

465 PRECAST CONCRETE PAVING SLABS 6118-AEW-XX-XX-NBS-A-01
• Standard: To BS EN 1339, hydraulically pressed.
• Manufacturer: Contractor's choice.
- Product reference: site specific.
• Colour: site specific.
• Finish: site specific.
• Recycled content: Submit proposals.
• Size: site specific.

RotF generic (intermediate) NBS 2014