Summary
Gypsum hard board (GHB).
Gypsum hard board (GHB).
Digital objects
Finish
-
-
Material
Gypsum
Gypsum
Length
2400 mm, 3000 mm
2400 mm, 3000 mm
Width
1200 mm
1200 mm
Specification
Standard
To BS EN 520.
To BS EN 520.
Edge profile
Tapered down the long edges.
Tapered down the long edges.
Additional properties
Product Reference
Siniat LaDura Board
Siniat LaDura Board
Colour
White/ grey on both faces.
White/ grey on both faces.
Width
1200 mm.
1200 mm.
Length
2500 mm.
2500 mm.
Thermal resistance (R-value)
0.05 m²K/W.
0.06 m²K/W.
NominalThickness
12.5 mm.
15 mm.
Weight
36.9 kg.
43.2 kg.
ThermalConductivity
0.25 W/m·K.
0.25 W/m·K.
Water vapour resistance – μ value
μ = 10.
μ = 10.
MoistureContent
0.6–1%.
0.6–1%.
Reaction to fire
A2-s1, d0.
A2-s1, d0.
Water vapour permeability
≤5%.
≤5%.
Tensile strength - longitudinal
≥725 N.
≥870 N.
Tensile strength - transverse
≥300 N.
≥360 N.
Mass
12.8 kg/m².
15.0 kg/m².
Board materials
Aerated calcium sulphate di-hydrate with fillers, glass fibres, wooden fibres (8% of dry mass) and silicone oil enclosed inside a tough paper with bound edges. Core and papers are bonded with starch. PVA edge glue.
Aerated calcium sulphate di-hydrate with fillers, glass fibres, wooden fibres (8% of dry mass) and silicone oil enclosed inside a tough paper with bound edges. Core and papers are bonded with starch. PVA edge glue.
Sustainability data
Contains Red List materials
No
No
Country of product manufacture
United Kingdom
United Kingdom
A1-A3 (production stage)
Embodied carbon as defined in BS EN 15804
Normalised unit
0.2 kg CO₂ eq/kg
0.2 kg CO₂ eq/kg
Declared unit
0.16 kg CO₂ eq/kg
Self-declared
0.16 kg CO₂ eq/kg
Self-declared
Recyclability
100%
100%
Recycled content
14 %
14 %