The timber of Holz100 system is harvested when the sap levels in the trees are at its lowest; influenced by the gravitational pull of the moon cycle. A stable moisture content is achieved by allowing the timber to drain vertically and drying naturally for at least 1-4 years. This drying cycle builds a muscle memory in the cellulose fibres of the timbre, thereby producing lumber that is more stable and less prone to cracking and splintering over time. The result is a controlled indoor climate in Holz100 homes.
Holz100 is a breathable building system that is 100% sustainable. The core principle behind a Holz100 home is its cradle-to-cradle approach. The product is 100% pure solid wood, without chemical toxins or preservatives, and can be reused and recycled back into nature as compost and nutrients for future thriving trees. Holz100 harvests only moonwood, that are slowly dried naturally, allowing the trees to mature and stabilize with a low relative moisture content. Holz100 has a 50-year warranty against mold and condensation.
Do you have cabin fever? Never feel isolated again! Holz100 is an innovative breathable building system that brings nature indoors. Holz100 homes are 100% pure solid wood, free of chemicals and toxins. Without synthetic glues and paints, or dust from mineral wool, the building is able to breathe and acts as a natural filter. Holz100 is an eco-friendly product, and perfect for allergy sufferers.
Holz100 walls are permeable and windproof. This combination results from the material structure of walls made of 100% pure, solid wood. Thoma also provides a 50-year guarantee against mold and condensation for his buildings. This is unique in the construction industry!
In the winter, the best values of the Holz100 system become particularly effective as it trumps all other building materials regarding the cooling time of the building envelope. That makes energy efficient living and self-sufficient passive houses without insulation and complicated building technology possible.
Holz100, thanks to its patented construction, absorbs heat almost twice as well as full or glued wood and thus holds the world record in thermal insulation among all building materials.
This wood is essential as there is minimum food for pests, is denser and therefore more naturally durable than conventionally harvested wood. No wood that contains toxins or preservatives can be safely dispensed.
Moonwood - Lasting for Generations
Wood harvested from the right time makes this possible. Holz100 only uses renewable, PEFC and FSC certified, native moonwood.
This is how wood is created in its best form:
Approval had to be sought for various individual cases before the project could be implemented. Ultimately, the project made recourse to building regulations that have been in force for several years in Switzerland.
The use of solid wood construction is also a novelty in Hamburg: this type of development is not provided for in the city’s building regulations or those in force in other states (cf. the White Paper “Urbaner Holzbau” ‒ Urban timber construction).
The “WOODCUBE” enters new territory by incorporating an exterior wall structure that contains dowelled cross-laminated timber elements as airtight building components, without the need for additional measures such as airtight pathways or engineered wood board.