Other characteristic and calculated values

The following values can generally be applied for the moisture protection, preservative treatment and fire protection verifications.

Technical characteristics

Moisture content um

15 % ± 3 %

Swelling and shrinkage ratio

0,24% pro 1 % Water vapor diffusion resistance factor

Reaction to fire class in accordance with EN 13501-1 

D-s2, d0


Recommended weight for calculation of dead-loads (including weight of fasteners and light weight connectors etc.)

5 kN/m³


Thermal conductivity λ

0,13 W / (mK)


Water vapour permeability µ


The natural durability against biological attack corresponds to the natural durability of the species of wood, regardless of the type of glue used.