Section Contents

Essential Characteristics for LVL in Loadbearing Applications

LVL is governed by two different EU standards, including for loadbearing applications. This depends on its classification as either a material used for manufacturing structural components (in a similar way to glued laminated timber) or as a product for use in both non structural and structural situations.

APA’s advice here refers to buildings and bridges, and the structural, loadbearing requirements of EN 14374.  Refer also to its definition as a product, covered by the performance chacteristics under EN 14279.

Essential

Characteristics

EN 14374

Clause No.

Levels and/or Classes

Modulus of elasticity

4.5.2

N/A

Bending strength

4.4.2

4.4.3

Compression strength

4.4.6

4.4.7

Tension strength

4.4.4

4.4.5

Shear strength

4.4.8

4.4.9

Bonding strength

4.2

Reaction to fire

4.8

A1 – F ( as given in EN13986)

Release of formaldehyde

4.9

Durability

4.10

Note: Not all characteristics are required in every member state. Where there are no regulatory requirements on that characteristic for the intended end use, manufacturers are not required to determine or declare the performance of their product with regard to a specific characteristic. They can use the option ‘No performance determined’ (NPD) in the information accompanying the CE marking. The NPD option may not be used where the characteristic is subject to a threshold level.

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What is a ‘life cycle stage’ and how do these link to the environmental assessment of whole buildings?

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The main standards are: EN 13986 and EN 300

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