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550 INSTALLATION OF INTERFACES
• General: Locate flashings, closers etc. correctly with neat overlaps to cladding to
form weatherproof junctions.

580 FIXING
• Torque figures and shim dimensions: Do not exceed fixing manufacturer's
recommendations.
• Grouting: Secure fixings in place in cladding and support structure/ background
with cement:sand, epoxy or modified polymer mix, as recommended by the stone
supplier.
• External cladding: Do not use mortar spacer dabs. Keep cavity clear of debris.
• Give notice:
- Before covering up loadbearing fixings.
- Before proceeding with next course on completion Not required .

630 SEALANT MOVEMENT/ OTHER JOINTS
• Sealant: Silicone .
- Manufacturer: Contractor's choice .
Product reference: site specific .
- Colour: site specific .
- Application: As section Z22.
• Joint widths: Where not specified, to be as small as practicable. Allow for
shrinkage, thermal and other movements in structure and cladding.

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