Page 355 - McD_6118-AEW-XX-XX-NBS-A-001_Neat

270 STAIRSsteel
• Component material, grade, finish as delivered:
- Treads: Site specific.
Slip resistance value of integral tread – water wet (minimum): Site specific.
Slip resistance value of integral nosing – water wet (minimum): Site specific.
Colour of integral nosing: Site specific.
- Risers: Site specific.
- Strings: Site specific.
- Newels: Site specific.
- Guarding: Site specific.
- Handrails: Site specific.
Lower handrail: Site specific.
• Workmanship:
- Joinery: Site specific.
- Metalwork: Site specific.
• Other requirements: Site specific.

410 STEEL LADDERSgenerally
• Manufacturer: Contractor's choice.
- Product reference: Site specific.
• Standard: To BS 4211.
- Structural design: To BS 5950-1.
• Safety hoops: Required.
• Platforms: Hot dip galvanized Durbar pattern mild steel tread plate.
• Finish as delivered: Galvanized to BS EN ISO 1461.
• Other requirements: Slip resistant coating to rungs, as section M60
• Fixing: Bolted to concrete floor edges.

470 RAMPS/ WALKWAYSgenerally.
• Manufacturer: Contractor's choice.
- Product reference: Site specific.
• Component material, grade and finish as delivered:
- Flooring: Site specific.
- Guarding: Site specific.
- Edge protection: Site specific.
- Handrails: Site specific.
Lower handrail: Site specific.
• Workmanship: To section Z10 or Z11.
• Gradients:
- Going: Site specific.
- Cross fall: Site specific.
• Other requirements: Site specific.

INSTALLATION

610 MOISTURE CONTENT
• Temperature and humidity: Monitor and control internal conditions to achieve
specified moisture content in wood components at time of installation.

620 PRIMING/SEALING/PAINTING
• Surfaces inaccessible after assembly/installation: Before fixing components, apply
full protective/decorative treatment/coating system.

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