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335 STEELhollow section support
• Steel: To BS EN 10210-1.
- Grade: S275JR.
- Section properties and dimensions: To BS EN 10210-2.
- Surface condition: Free from heavy pitting and rust, burrs, sharp edges and flame
cutting dross.
- Corrosion protection: Hot dip galvanizing to BS EN ISO 1461.

340 EXTERNAL DOORS
• Manufacturer: approved supplier.
- Product reference: suppliers recomendation.
• Material: Aluminium.
• Finish as delivered: Powder coated.
- Colour: site specific.
• Glazing: suppliers recomendation.

360 GLASS GENERALLY
• Standards: To BS 952 and relevant parts of:
- BS EN 572 for basic soda lime silicate glass.
- BS EN 1863 for heat strengthened soda lime silicate glass.
- BS EN 12150 for thermally toughened soda lime silicate glass.
- BS EN ISO 12543 for laminated glass and laminated safety glass.
• Panes/ sheets: Free from obvious scratches, bubbles, cracks, rippling, dimples and
other defects.
- Edges: Generally undamaged. Shells and chips not more than 2 mm deep and
extending not more than 5 mm across the surface are acceptable if ground out.

370 INSULATING GLASS UNITSgenerally
• Standard: To BS EN 1279-1.
• Overall thickness: to suit site specific layout.
• Outer pane:
- Material: Thermally toughened clear float glass .
Thickness: site specific.
• Inner pane:
- Material: Thermally toughened clear float glass .
- Thickness: site specific.

395 CAVITY TRAYS
• Standard: In accordance with BS 8215.
• Manufacturer: contractor's choice.
- Product reference: contractor's choice.

410 SEALANT
• Manufacturer: contractor's choice.
Product reference: contractor's choice.
- Colour: site specific.

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