LAMBDA 25 roof panel

The upgraded LAMBDA® 25 roof panel features a number of important enhancements compared to the version that has been produced so far, and the panel displays unusual flexibility in creating a roofing appearance.

Technical specification

Groove height: 25 mm
Effective Width: 515 mm; 306 mm; 205 mm
Overall width: ~547 mm; ~337 mm; ~236 mm
Sheet thickness: 0,5 mm
Board length: 8000 mm

Simple and versatile form with wide options for customizing parameters such as groove height, overall width and width of overlap or additional longitudinal overhangs. The rich stylish options of the roof can, depending on the type of the object and the material used, emphasize the traditional character or the modern look.

Due to the design of the roof panels, the so- "Waving" the sheets on the surface. It is natural for this type of product phenomenon.


The LAMBDA® L25 latches can be cut off, making it possible to bend into the guttering.

WARNING! When ordering a panel with a cut-out panel underneath the LW, the production system automatically adds 30 mm to the ordered panel length.


You can also order LAMBDA® L25 roofing panels with bending edge [codes: LWZ] to increase the safety and speed of assembly. It also has a positive effect on the appearance of the cover (the cut edge is not visible).

Available overlays (height 1 mm):

Trapezoidal width. 58 mm
Trapezoidal width. 25 mm
Rounded overlay



Available overlays (height 1 mm):
Trapezoidal width. 58 mm
Double trapezoidal width. 25 mm
Double rounded overhang


Coating and colors