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715 LAYING FLAG AND SLAB PAVING - MORTAR LAYING COURSE AND JOINTING
• Standard generally: In accordance with BS 7533-4.
• Flag installation and cutting: To Interpave 'Concrete flag paving'.
• Laying course:
- Nominal thickness: site specific.
• Laying and jointing: site specific.
• Joint width (nominal): 10 mm.

725 LAYING RIGID BRICK PAVING
• Standard generally: In accordance with Brick Development Association Design
Note 8.
• Bedding and jointing method: Simultaneous bedding and jointing with stiff plastic
mortar.
• Cement slurry: Apply thin slurry (1-3 mm) of neat cement or 1:1 cement:soft sand
over the freshly laid mortar bed immediately prior to laying bricks.
• Laying: Wet bricks as necessary (but do not soak), butter joint faces and press
down firmly to give a level surface with 10 mm regular joints.
• Nominal thickness of bed: site specific.
• Joint profile: Bucket handle.

750 LAYING NATURAL STONE COBBLE PAVING
• Bedding, laying, jointing and completion: In accordance with BS 7533-7 and -10.

760 LAYING PRECAST CONCRETE AND GRAVEL PAVING
• Laying: Tamp down into lightly compacted laying course.
- Nominal thickness of laying course after compaction: site specific.
• Filling: Allow to settle and refill level with surface.

785 TOOLED JOINTS IN MORTAR BEDDED UNITS
• Joints: Completely filled with bedding mortar as work proceeds.
- Joint width: 6-10 mm.
- Finish: Neat flush profile.

800 APPLYING SEALANT/ STABILIZER TO BLOCKS AND SETTS
• Surface preparation: Ensure sand joints are completely dry and free from
contamination and Sweep clear of loose sand before sealing.
• Sealer/ stabilizer: Contractor's choice.
- Application: To dry paving.
Method: To manufacturer's recommendations.
Number of coats: site specific.
Coverage: site specific.

COMPLETION

915 COMPLETION OF PAVING WITH DRY SAND OR FINE AGGREGATE FILLED JOINTS
• Sand dressing: Leave a thin layer of dry jointing sand over the paving, sweep clean
before practical completion.
• Final compaction of the surface course: In accordance with BS 7533-3.
• Vacuum cleaning machines: Not allowed.

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