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PRODUCTS

320 PRIMER generally
• Type: As membrane manufacturer's/ supplier's recommendations.
• Manufacturer: Contractor's choice.
- Product reference: site specific.

325 ADHESIVE generally
• Type: As membrane manufacturer's/ supplier's recommendations for conditions
and surface.
• Manufacturer: Contractor's choice.
- Product reference: site specific.

330 TIMBER TRIMS, ETC
• 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 covering
manufacturer.

340 PREFORMED SLEEVES
• Type: 0.6 mm galvanized steel flanged sleeve with 0.5 mm unreinforced membrane
laminate.
• Manufacturer: Contractor's choice.
- Product reference: site specific.
• Colour: site specific.
• Size: site specific.

345 PERIMETER TRIMS
Type: 0.6 mm galvanized steel with 0.5 mm unreinforced membrane laminate.
Manufacturer: Contractor's choice.
- Product reference: site specific.

• Colour: site specific.
• Size: site specific.

355 MECHANICAL FASTENERS, WASHERS, PRESSURE PLATES, ETC
• Type: As membrane manufacturer's/ supplier's recommendations.
• Manufacturer: Contractor's choice.
- Product reference: site specific.

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

365 ORIENTED STRAND BOARD (OSB) OVERLAY TO METAL DECK
• Standard: To BS EN 300, type OSB/3.
• Thickness: 18 mm.

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