Untreated wood façade

Untreated wood façades have their very special charm and give every home a very personal, individual touch. However, there are a few considerations that need to be made so that you can also continue to enjoy the façade in a few years’ time.

When it comes to an untreated wood façade, selecting the right wood type is essential. Normally only woods that can withstand the climatic conditions come into consideration. If you make the right decision here, you can expect maintenance requirements to be very low in the future. Native and Siberian larch, the Douglas fir and red cedar are suitable woods for untreated wood façades. Other woods are also an option, depending on where the house is located or whether you love a very rustic look. The greying of the wood is a very important aspect that must be taken into account for untreated façades. Wood is a natural product and continues to “work”, even after it has been mounted on your house’s façade. Weather conditions such as sunlight and rain cause the wood to lose its original colour after a relatively short time and, depending on the type and environmental influence, take on a very individual grey shade. It should be noted that the wood greys to a varying extent. For example, the greying may take place more slowly at roof overhangs or around windows, as the influence of the climate does not leave such obvious traces here. This then causes the colour of the rest of the façade to appear uneven. This phenomenon can be counteracted using our pre-greyed wood façade. It should be mentioned at this point that the greying has no influence on the durability of the wood. If the right wood type has been selected, you can count on a stable, high-quality product for many years.

Wood types for your untreated façade

We offer you an extensive selection of different woods for your façade design. The woods shown here only represent a small selection of our product range.

Siberian larch

Origin: The Siberian larch is native to Western Siberia, the mountains of Southern Siberia and the Central Siberian Plateau.

Visual appearance: The fine-grained appearance with a low proportion of sapwood displays a colour spectrum ranging from light brown to slightly red. Depending on the construction, rapid greying through to a black colouration is possible.

Average bulk density: 602 kg/m3

Natural durability: 2-3


European larch

Origin: The European larch can mainly be found in the Alpine regions of Central Europe and in Poland. It is also at home in higher regions up to 2400 m thanks to its daylight requirements, ease of seeding and hardiness to winter frost. It prefers to populate clear slopes and forest gullies

Visual appearance: Sapwood up to 2 cm wide and pale reddish yellow. Heartwood yellowish-brown to red-brown, significantly darkens in light

Average bulk density: 550 – 590 kg/m3

Natural durability: 3 – 4


Douglas fir

Origin: The Douglas fir originally comes from North America. It can mainly be found in an area extending from the slopes of the Rocky Mountains to Mexico. The Douglas fir has also been cultivated in forests in Europe since the 19th century.

Visual appearance: Sapwood 3 to 6 cm wide, white to yellowish brown, heartwood light yellow to red-brown, significantly darkens in light

Average bulk density: 503 kg/m3

Natural durability: 3-4


Silver fir

Origin: The silver fir can be found in southern Central Europe and in South-West Europe. It is native to the south of Germany.

Visual appearance: varies, pale yellow to almost white

Average bulk density: 450 kg/m3

Natural durability: 4


Western red cedar

Origin: The North American distribution area of the western red cedar extends from Alaska to California as well as to Montana in the west

Visual appearance: Sapwood generally 2-5 cm wide, white and partially with irregular grey-brown stripes. Heartwood yellowish-brown to dark reddish brown, often changing in the same trunk. Following prolonged exposure of the dry wood to light, a slight browning occurs, which can result in colour matching.

Average bulk density: 390 kg/m3

Natural durability: 2


Wooden profiles for your untreated façade

We offer you an extensive selection of different profiles for your façade design. The profiles shown here only represent a small selection of our product range; you can find all of the profiles in our brochures.

DRP (double rhombus profile)

Dimensions: 27, 33 x 146 (coverage: 136 mm)
Area of application: Façades

KSP 18 (feather-edge profile)

Dimensions: 15/24 x 146 mm (coverage: 126 mm)
Area of application: Façades


Dimensions: 26 x 65 mm (coverage: 136 mm)
Area of application: Façades

ETPS (single trapezoidal profile)

Dimensions: 27 x 96 mm (coverage: 74 mm)
Area of application: Façades

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