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M20 Plastered/ Rendered/ Roughcast coatings

130 CEMENT:SAND (AIR ENTRAINED)generally

• Substrate: site specific.

- Preparation: site specific.

• Mortar:

- Type: Ready to use mortar.

- Pigment: site specific.

• Undercoats:

- Mix: site specific.

Cement type: Sulfate resisting.

- Thickness (excluding dubbing out and keys): Undercoat 8-12 mm.

• Final coat:

- Mix: site specific.

Cement type: White Portland.

Other requirements: None.

- Thickness: 6-8 mm.

- Finish: To match existing.

• Accessories: Stops and beads .

200 GYPSUM PLASTER ON CEMENT GAUGED UNDERCOATS
• Substrate: site specific.
- Preparation: site specific.
• Undercoats:
- Mix: site specific.
- Thickness (excluding dubbing out and keys): 10 mm (maximum) overall.
• Final coat: Gypsum plaster to BS EN 13279-1, class B.
- Manufacturer: Contractor's choice.
Product reference: Contractor's choice.
- Thickness: 2-3 mm.
- Finish: site specific.
• Accessories: Beads and stops .

210 LIGHTWEIGHT GYPSUM PLASTERgenerally
• Substrate: site specific.
- Preparation: site specific.
• Manufacturer: Contractor's choice.
• Undercoats: To BS EN 13279-1.
- Product reference: Contractor's choice.
- Thickness (excluding dubbing out and keys): Two coat 13 mm overall.
• Final coat: Finish plaster to BS EN 13279-1, class B.
- Product reference: Contractor's choice.
- Thickness: 2-3 mm.
- Finish: Smooth.
• Accessories: Beads and stops .

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