Concealed fastening
Clever solution
Fastening is done using an invisible screw connection through the tongues on the substructure. Doing without a visible screw connection saves valuable time during the installation process.
For all the Kontrast Edition products, additional material and time is saved due to the closed tongue-and-groove construction, which makes do without UV-resistant housewrap. Thanks to the concealed fastening, the visible surface also remains free of penetrations, thus providing less of a vulnerable area for weather-related damage.



Closed facade
Simple and effective
For all the Kontrast Edition products, additional material and time is saved due to the closed tongue-and-groove construction, which makes do without UV-resistant housewrap. Thanks to the concealed fastening, the visible surface also remains free of penetrations, thus providing less of a vulnerable area for weather-related damage.



Corner solutions
Neat end edges
Edge profile outside corner
Edge profile outside corner aluminium
Edge profile cross profile aluminium
Edge profile Y aluminium
Edge profile outside corner
Edge profile inside corner
Edge profile inside corner aluminium
TRENDLINER Kontrast® elegant (rounded edges)
with black treated tongue, reverse side with dry groove, tongue-and-groove, with screw groove to enable concealed fastening
TRENDLINER Kontrast® XS elegant (rounded edges)
with black treated tongue, tongue-and-groove, with screw groove to enable concealed fastening
TRENDLINER Kontrast® XL elegant (rounded edges)
with black treated tongue, reverse side with dry groove, tongue-and-groove, with screw groove to enable concealed fastening
TRENDLINER Kontrast® COMPACT elegant (rounded edges)
front side with reversible tongue-and-groove, incl. 4 mm pressure joint
with black treated tongue, reverse side with dry groove, tongue-and-groove, with screw groove to enable concealed fastening
TRENDLINER Kontrast® starter board for elegant / striking use (without groove)
with black treated tongue, reverse side with dry groove, tongue-and-groove with screw groove
TRENDLINER Kontrast® striking (square edges)
with black treated tongue, reverse side with dry groove, tongue-and-groove, with screw groove to enable concealed fastening
TRENDLINER Kontrast® COMPACT striking (square edges)
front side with reversible tongue-and-groove, incl. 4 mm pressure joint
with black treated tongue, reverse side with dry groove, tongue-and-groove, with screw groove to enable concealed fastening
TRENDLINER Kontrast® starter board for elegant / striking use (without groove)
with black treated tongue, reverse side with dry groove, tongue-and-groove with screw groove
TRENDLINER Kontrast® XS striking (square edges)
with black treated tongue, tongue-and-groove, with screw groove to enable concealed fastening

TRENDLINER Kontrast® XL striking (square edges)
with black treated tongue, reverse side with dry groove, tongue-and-groove, with screw groove to enable concealed fastening

Trendliner Kontrast - striking
Rectangular design
In its finished state, the façade profile looks like a sharp-edged rhomboid batten with a black housewrap. The angular bevelled edges particularly emphasise the contrast effect of the black grooves. The contrast tongues create a clear structure that emphasises the linear character of the building.
There is a choice of two different profile widths and surfaces for a different look.
- Thanks to the tongue-and-groove façade profile, there is no need for UV-resistant housewrap.
- The profiles are fastened by a non-visible screw connection.

Trendliner Kontrast - Elegant
Rounded design
In its finished state, the façade profile looks like a classic rhomboid batten with a black housewrap.
The rounded bevelled edges create an elegant joint formation. The contrast tongues create a clear structure that emphasises the linear character of the building.
There is a choice of two different profile widths and surfaces for a different look.
- Thanks to the tongue-and-groove façade profile, there is no need for UV-resistant housewrap.
- The profiles are fastened by a non-visible screw connection.

Trendliner Kontrast - Compact
with reversible tongue-and-groove at front
Due to flying joints, the Trendliner compact system can be installed with almost no cutting waste, saving costs and time.
The pressure joint prevents moisture accumulation on the front joint and discolouration of the wood associated with this, as it promotes drying of the end grain areas.
- The contrast tongues create a clear structure that emphasises the linear character of the building.
- There is a choice of two different widths, surface textures for different views and two different installation directions.