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140 INSULATION FITTED AT RAFTER LEVEL
• Manufacturer: Contractor's choice.
- Product reference: submit proposals.
• Location: Between rafters.
• Material: Glass wool to BS EN 13162.
• Facing: Metal foil.
• Recycled content: Submit proposals.
• Thickness: site specific.
• Installation requirements:
- General: Insulation to be friction fitted between rafters with no gaps.
- Joints: Butted, no gaps.
- Fasteners: Used where necessary to retain insulation and/ or prevent slumping.
- Vapour control facing (if specified): Fit insulation with facing on warm side.
Staple overlap (if provided) to underside of rafters; tape joints between adjacent
overlaps using vapour impermeable adhesive tape.
- Air space above insulation: Not restricted.
- Eaves ventilation: Unobstructed.

190 INSULATION FITTED BETWEEN OR TO THE FACE OF STUDS
• Location: Insert Between studs (site specific).
• Manufacturer: Contractor's choice.
- Product reference: submit proposals.
• Material: Mineral wool to BS EN 13162.
- Facing: Not required.
• Recycled content: Contractor's choice.
• Thickness: site specific.
• Installation requirements:
- Joints: Butted, no gaps.
Fasteners: Use where necessary to retain insulation and/ or prevent slumping.

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