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Key Features
• Liner terminates at top of cladding rail and the rail is sealed.
• Liner is air and vapour sealed to flanges of cladding rail, to manufacturers' recommendations.
• Parapet cap made from 0.7 mm steel (or equivalent in aluminium etc).
• Cap to slope to the inside, 6° minimum.
• Insulation under cap to be at least the thickness/type used on walls. i.e. 120 mm (approx) for glass fibre, 60 mm (approx) for urethane.
• If quilt is used on top of the rail, an intermediate spacer is required. (Quilt prefered, as gaps can be filled).
• Cap fixed to cladding, with seals, fillers etc. as normal.
• Butt strap joints to manufacturers' details.
• Thermal bridging will be low.

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