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130 INVERTED ROOF COATINGgenerally
• Substrate: site specific.
- Preparation: site specific.
• Waterproof coating: site specific.
- System manufacturer: Agrément certified.
Primer reference: manufacturers recomendation.
Coating reference: manufacturers recomendation.
- Application: manufacturers recomendation.
- Reinforcement: To general areas in embedment coat.
- Minimum dry film thickness: manufacturers recomendation.
- Colour: site specific.
• Surface protection: site specific.
• Insulation: Extruded polystyrene board.
• Filter layer: Nonwoven polyester fleece recommended by insulation manufacturer.
• Insulation protection/ Securement: site specific.
• Accessories: site specific.

PRODUCTS

315 TIMBER TRIMS
• Quality: Planed, free from wane, pitch pockets, decay and insect attack (except
ambrosia beetle damage).
• Moisture content at time of covering (maximum): 22%.
• Preservative treatment: As recommended for purpose by waterproof coating
manufacturer .

320 PLYWOOD OVERLAY TO METAL DECK
• Plywood: To BS EN 636, section 7 (plywood for use in humid conditions).
- Quality: Naturally durable timber, free from preservative.
• Thickness: 18 mm.

330 VAPOUR CONTROL LAYER
• Type: Reinforced polyethylene sheet.
• Manufacturer: Contractor's choice.
- Product reference: Contractor's choice.
• Thickness: site specific.
• Vapour resistance: site specific.

332 EXTRUDED POLYSTYRENE (XPS) WARM DECK ROOF INSULATION
• Standard: To BS EN 13164.
• Manufacturer: Contractor's choice.
- Product reference: Contractor's choice.
• Grade: As recommended by the insulation manufacturer for the traffic loading.
• Edges: Rebated.
• Thickness: site specific.
• Facing: Factory bonded foil upper face.

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