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370 COVER STRIPS TO JOINTS IN RIGID BOARD SUBSTRATES
• Bitumen membrane: To BS 8747, class S2P3.
• Manufacturer: Contractor's choice.
- Product reference: site specific.
• Width: 150 mm.

375 MINOR MOVEMENT JOINTS IN SUBSTRATES
• Manufacturer: Contractor's choice.
- Product reference: site specific.
• Size: site specific.
• Insert colour: site specific.

380 PROTECTION LAYER
• Type: As membrane manufacturer's/ supplier's recommendations.
• Manufacturer: Contractor's choice.
- Product reference: site specific.
• Grade: site specific.

383 SEPARATING LAYER
• Type: As membrane manufacturer's/ supplier's recommendations.
• Manufacturer: Contractor's choice.
- Product reference: site specific.
• Grade: site specific.

385 FILTER LAYER
• Type: As membrane manufacturer's/ supplier's recommendations.
• Manufacturer: Contractor's choice.
- Product reference: site specific.
• Grade: site specific.

395 VAPOUR CONTROL LAYER
• Type: As membrane manufacturer's/ supplier's recommendations.
• Manufacturer: Contractor's choice.
- Product reference: Contractor's choice.
• Thickness: site specific.
• Vapour resistance: site specific.

400 WATERPROOF MEMBRANE
• Type: site specific.
• Manufacturer: site specific.
- Product reference: site specific.
• Width: site specific.
• Thickness: site specific.
• Colour: site specific.
• Guarantee: 15 years.

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