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H62 Natural slating

TYPES OF SLATING

125 ROOF SLATINGgenerally
• Substrate: site specific rafter design.
• Pitch: site specific.
• Underlay: Contractor's choice .
- Recycled content: Submit proposals.
- Laying: Parallel to eaves.
- Head-lap (minimum): 150 mm.
• Battens:
- Size: site specific.
- Fixing site specific.
• Slates:
- Supplier: Contractor's choice.
Product reference: site specific.
- Type: site specific.
- Size:
Length: site specific.
Width: Random (minimum) site specific.
- Head-lap (minimum): site specific.
- Sidelap: To BS 5534, clause 5.3, to suit slate size, roof pitch and exposure.
- Fixing:
• Accessories: None.

SLATING GENERALLY

210 BASIC WORKMANSHIP
• General: Fix slating and accessories to make the whole sound and weathertight at
earliest opportunity.
• Setting out: To true lines and regular appearance, with neat fit at edges, junctions
and features.
• Fixings for slating accessories: As recommended by manufacturer.
• Gutters and pipes: Keep free of debris. Clean out at completion.

220 REMOVING EXISTING SLATING
• General: Carefully remove slates, battens, underlay, etc. with minimum
disturbance of adjacent retained slating.
• Undamaged slates: Set aside for reuse.

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