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340 PREFORMED SLEEVES, TRIMS, ETC
• Type: Preformed flanged sleeve.
• Manufacturer: Contractor's choice.
- Product reference: Contractor's choice.
• Colour: site specific.
• Size: site specific.

345 PERIMETER TRIMS
• Type: Aluminium to BS EN 12020-1, grade EN-AW 6063T4.
• Manufacturer: Contractor's choice.
- Product reference: Contractor's choice.
• Colour: site specific.
• Length (maximum): 3 m.

370 COVER STRIPS TO JOINTS IN RIGID BOARD SUBSTRATES
• Bitumen membrane: In accordance with BS 8747, Class S2P3.
• Width: 150 mm.

395 VAPOUR CONTROL LAYER
• Type: Two layers BS 8747 reinforced bitumen membrane, first layer Class S2P3,
second layer Class S1P1.
• Manufacturer: Contractor's choice.
- Product reference: site specific.
• Thickness: site specific.
• Vapour resistance: site specific.

400 SEPARATING LAYER (LOOSE LAID)
• Manufacturer: Contractor's choice.
- Product reference: site specific.
• Type: Reinforced bitumen sheathing felt.
- Laps (minimum): 50 mm.

402 MASTIC ASPHALT (ROOFING)
• Manufacturer: Contractor's choice.
- Product reference: site specific.
• Type: To BS 6925, R988/T25.
- Application: 20 mm nominal thickness in two coats.

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

RotF generic (intermediate) NBS 2014 6118-AEW-XX-XX-NBS-A-01