Technical information for Cross-laminated timber.

Cross-laminated timber.
Manufactured by stacking layers of timber (lamellas), at right angles to one another to form structural panels, these are suitable to use as walls, roofs and floors.

Wood species.
Spruce is the most widely used however Larch, White Fir and Douglas Fir are also available.

Wood moisture content.
• 10-14% at delivery

Gluing.
Waterproofed adhesives approved for interior and exterior applications, tested in accordance with EN 301/302. Formaldehyde-free panels are available, using a melamine based glue. (non toxic)

Dimensions.
Panels can be manufactured from three up to 27 layers to provide appropriate strength classes in sizes from 75mm-334mm deep, 1280mm-2950mm wide, lengths up to 18m.

Structural forms.

Cross-laminated timber can be used as:
• Structural & non-structural wall elements
• Multi-storey (up to 8 storey) with or without concrete sub-structure
• Solid partitions with & without linings
• Floor/ceiling elements
• Parapet wall elements
• Roof elements
• Pre-insulated wall & roof cassettes
• Room-in-the-roof sloping panels
• Cantilevered floors/balconies
• Curved load bearing structures
• Load bearing lift shafts
• Stairs

Span & height capabilities.

Finishes.

Quality. BS EN 13017-1
• Visible Residential
  - Suitable for exposed internal use in residential and commercial structures
• Visible Industrial
  - Suitable for exposed internal use in industrial structures
• Standard Grade
  - Non-visible quality suitable for lining
  - Top layers correspond to Class C

Cladding.

External cladding can be undertaken with almost any material including traditional brick and stone, zinc, aluminium, terracotta and steel. Three fixing systems are available:

• Direct-fix cladding
• Framed from the CLT - not self-supporting
• Self-supporting – secondary framing transfers lateral loads by spanning between floors and roof levels

Applications.

Ideal for a fast and efficient construction, where the aesthetics or acoustic performance is paramount. Cross-laminated timber is not limited in height by any building code.

• Low-rise non-residential buildings; i.e. education and health facilities
• Multi-storey construction up to 12 storeys; social or private residential, hotel or hostel
• Sport, exhibition & leisure centres
• Commercial offices