Roof panel

Roof boarding or structural roof panels: Kerto® LVL is a highly material-efficient solution thanks to its particular strength. Kerto Q-panel, Kerto L-panel and Kerto Kate are mainly used in this application. As a prefabricated element or as individual panels installed on-site, the material can be used in the construction of simple garages and complex special building projects. In many projects, the Kerto LVL surface remains visible. Kerto LVL is used to produce roof elements in industrial buildings, warehouses and sports halls, detached houses, apartment blocks, offices and barns.

The element manufacturers benefit from the project-specific dimensions of the boards - lengths of two to a maximum of 25 metres are available. The usual width is 0.9 to 2.5 metres. In addition, thicknesses of 21 to 75 millimetres are possible, with Kerto Kate also thicknesses of 15 and 18 millimetres.

Kerto LVL has transverse layers, and cantilevers over the corner area - i.e. on the eaves and gable side - are also possible. In addition, the boards can be laid parallel and transverse to the rafter and beam position. The panels are also available with half-laps, which enables them to create bracing roof diaphragms.

The Kerto LVL panels can also be connected using coupling boards. The roof diaphragm is usually produced with offset joints on rafters or trusses. Spans of 0.5 to 2.5 metres are the rule. It is fastened with staples, nails or screws.

Kerto LVL can also act as a vapour barrier in the roof area. Without further measures, the natural wood-based material can achieve fire resistance class F30 with the appropriate thickness.

The Finnwood software is ideal for structural calculations, offering the flexibility to select various aspects of the supporting structure, such as spans, support widths, inclinations, loads, and more. Additionally, Kerto Q-panels are included in most design software. Metsä Support guides proven design principles and detailed execution information

Benefits of using Kerto LVL in roof panel

  • Transverse layers in the material enable two-sided cantilevering (eaves and gable side)
  • Bracing roof slab possible without additional measures
  • Fine gradation of panel thicknesses from 15 to 75 millimetres for high flexibility and cost-efficient in every project
  • High-performance panel material with high strength for slim solutions with low roof height
  • Wide standard range and project-specific product dimensions for minimised waste
  • Use for prefabricated element construction or as a structural element
  • Material efficiency and high performance for a resource-saving construction method

Roof panel combined with other applications

The easy-to-install Top Slab connection is ideal for connecting roof elements to walls or beams, which is achieved by an overhang of the top panel.

The special efficiency of laminated veneer lumber is not only evident in the roof construction, but also in the lintel and rim beam applications.