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112.5 mm wall thickness.
BBA Agrément Certificate
Certificate type
Independent lining system.
Independent dry linings.
Metal stud lining system based on fermacell® gypsum-fibreboard linings. Homogeneous dry lining board made from recycled gypsum, recycled cellulose fibres from post consumer waste paper and recycled water.
Features and benefits:
ColorBoard colour. | Grey |
Material | Gypsum Fermacell Gypsum-Fibreboard consists of a homogeneous mixture of water, gypsum and cellulose fibre compressed at high pressure. |
Shape | Rectangle |
Length | 2400 mm 2700 mm 3000 mm |
Width | 1200 mm |
Uniclass | |
CAWS | K10/155 Wall lining system (metal studs) K10/30 Metal stud |
System performance | Fire performance EI 90 to EN 1364-1. Improved sound performance - ΔRw 22 dB. |
Insulation | Not required. |
Linings | - |
Inner layers | Three layers of 12.5 mm fermacell® Gypsum-Fibreboard. |
Fasteners | fermacell® screws.30 mm fermacell® screws at 400 mm centres and 40 mm fermacell® screws at 250 mm centres. |
Joint treatmentOuter layer. | Inner layer, 1 mm (maximum) dry butt joints; Outer layer, fermacell® Jointstik 1 mm glued joint.Inner layer, 1 mm (maximum) dry butt joints; Outer layer, fermacell® Jointfiller 5–7 mm filled joint. |
Finish | Not required.fermacell® Fine Surface Treatment (FST). |
System accessoriesUse correct accessories as per manufacturers guidelines. Insert requirements. | - |
ExecutionInstalling gypsum board linings generally. | - |
System completion | Verification of performance. |
Metal studs | 75 mm fermacell® studs. 100 mm fermacell® studs. |
WallThickness | 112.5 mm. |
SubstructureMax 600 mm centres. | 75 x 0.6 mm fermacell® studs. |
BoardBoarding to room side. | 3 x 12.5 mm. |
Board size | 2400 x 1200 mm. 2700 x 1200 mm. 3000 x 1200 mm. |
Densityfermacell® fibre gypsum board. | 1150+50 kg/m³. |
Water vapour diffusion resistancefermacell® fibre gypsum board. | 13 μ. |
ThermalConductivityfermacell® fibre gypsum board. | 0.32 λ. |
SpecificHeatCapacityfermacell® fibre gypsum board. | 1.1 kJ/kgK. |
Hardnessfermacell® fibre gypsum board. | 30 N/mm². |
ThicknessSwellingfermacell® fibre gypsum board. | <2%. |
Shrinkagefermacell® fibre gypsum board. Extension/shrinkage. | 0.25 mm/m. At 30% change in relative humidity (20°C). |
MoistureContentfermacell® fibre gypsum board. | 1.3%. At 65% relative humidity at 20 °C air temperature. |
pH valuefermacell® fibre gypsum board. | 7–8. |
Usagefermacell® fibre gypsum board. | Type 1 and 2. Usage classification to EN 1995-1. |
ThermalExpansionCoefficientfermacell® fibre gypsum board. | 0.0001%/K. |
Recycled content | 100 % Best Fermacell gypsum fibreboard contains 100% recycled content. All by-products recyclable. |
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