The end laps sealed with a 4 mm diameter high grade butyl mastic. The side lap sealed with a 50 x 1 mm high grade butyl mastic positioned on top of joint.
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Spacers
Instaloc Plus.
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Acoustic insulation
Acoustic Mineral Fibre Slab – RW3 (60 kg/m³).
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Thermal insulation
Glassfibre (12.5 kg/m³)., Stonefibre (60 kg/m³).
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External sheets
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Material
Pre-coated steel, Galvalloy® hot-dip metallic coating based on a zinc (95%): aluminium (5%) ZA255 alloy manufactured to EN 1034.