​An old wooden chimney made a huge impression by our inventor Dr. Erwin Thoma during childhood. This strange object was located in a 400 year old farmhouse in Austrian alps and belonged to a friends of his that farmed this mountain side.

The charred wooden chimney started above an open fireplace at the main floor of the house built form wooden beams. The black chimney flue made from larch wood boards went through the ceiling, the 2 bedrooms upstairs passing through and beyond the shingled roof.

The reason was that the particular larch trees which were used to build it were cut at a very specific time according to the phase of the moon. He found this very intriguing and practical at the same time.

Luthiers, who had no advanced technology at their disposal, were able to make spruce timber a 100 times more expensive than gold. It is not just the material value that counts. Such an exceptional instrument such as a violin becomes priceless for all cultures, since its sound will continue to provide joy to many generations of music lovers for centuries. As such, Holz100 uses high quality timber carefully selected, moon harvested and air-dried wood for every single project.
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Did you know? We offer a 50 year warranty against mold and condensation for our Holz100 products! Fungal resistance of a building material is very important, as a vapor retardant will eventually become worn and become less effective in preventing damage of mold / fungus. The best solution is a solid, homogenous wooden wall like the Holz100 system.
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How does wood become a material which can withstand the toll of thousands of years of weather unscathed? Three things are responsible for making wood particularly durable. First, choosing properly grown trees; second, harvesting the wood at the right time, and, third, correctly storing, drying and processing the wood. That is why Holz100 exclusively uses moon harvested wood thousands of feet high in the alps that have been hand-picked and air-dried naturally for years.
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A Holz100 home can be built in any architectural and interior design possible inside and out - We make everything possible. ​DESIGN IS LIMITED ONLY BY YOUR IMAGINATION! A prefabricated home built of CLT without glues, chemicals or toxins offers endless possibilities.​

From the polar circle to the Mediterranean, from Tokyo to San Francisco; urban passive houses, cottages, high end villas, schools, kindergartens, hotels, offices, health spas, senior homes, and medical buildings become cozy and warm with only a couple of logs on the fire even when it's minus 40°C outside.
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Holz100 consists of vertical and horizontal wood elements which are densely layered, without gaps, to become solid and compact construction elements. Dry wooden dowels penetrate these layers and, once in position, the dowels soak up any residual moisture and swell into the surrounding wood. ​