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Cross Laminated Timber by Stora Enso is a solid wood construction product consisting of bonded single-layer panels arranged at right angles (90°) to each other. It can measure up to 2.95 m × 16.00 m. CLT solid wood panels are made up of several layers (3, 5, 7, or 8 layers) and are available in different panel thicknesses (maximum thickness 0.4 m). The layers are bonded using formaldehyde-free adhesives. Panels of CLT are used for the construction of houses and apartment buildings, as well as for industrial and commercial buildings. Panels can be used in wall, ceiling and roof constructions. Technical information - Wood species: spruce (Picea abies), pine (Pinus sylvestris) - Wood moisture: 12% ± 2% - Glue/adhesive: polyurethane adhesive (PUR), emulsion-polymer-isocyanate adhesive (EPI) - Composition: wood (99%), resin (1%) - Visual quality: non-visible, industrial visible and visible quality; the surface are sanded on both faces - Weight: approx. 470 kg/m³ - Water vapour transmission resistance: 20–50 μ (EN 12524) - Thermal conductivity λ: 0.11 W/(mK) (EN 12524) - Specific heat capacity cp: 1,600 J/(kgK) (EN 12524) - Usage classes: 1 and 2 (EN 1995-1-1) - Strength class: C24 (EN 338)