Thoma HOLZ100 – Priroden.BG

PriRoden zhivot is the official partner for Bulgaria of Thoma Holz GmbH – an Austrian manufacturer of systems for energy self-sufficient wooden houses built with lunar wood.

For houses like trees, cities like a forest!

Thoma Holz GmbH builds the strongest houses in a scientifically proven and reliable way. This is achieved by using lunar wood mechanically fastened instead of the usual toxic wood glues. Thoma houses are the model for a waste-free construction industry based on the principle of the forest cycle.

Through innovation and patents, Thoma builds energy self-sufficient wooden houses or houses with very little energy consumption – without burdensome insulation materials and without complex technology. Nature offers everyone the opportunity to live in abundance.

We at PriRoden zhivot have the honor to work together with Thoma Holz GmbH and thus offer the innovative product Thoma Holz100 in Bulgaria.

For a better life together!

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

The world record for thermal insulation, six-fold fire protection, maximum earthquake resistance and the construction of houses without heating costs make wood the high-tech building material of the future. The only prerequisite for this is the correct handling of this valuable raw material. Based on traditional wood knowledge, the Thoma company developed the unique, solid wood house construction system Holz100.

The Holz100 house is made of 100 % wood and surrounds its occupants with the unadulterated magic of trees. Such houses promote health and give life energy. Since 1990, the Thoma company has been developing building materials that not only have a positive effect on the health of the inhabitants, but also on the environment.

Тhe production processes are optimized so that there is almost no waste. The minor waste can be thermally recycled and immediately supply the production plants with energy again. Just as in the forest, everything here remains in the cycle and we can create a future fit for grandchildren.

1 2 3

Holz100 Technology

Thoma Holz100 is a solid wood construction system made of 100% natural pure softwood, harvested from sustainable forestry according to the lunar calendar. Without glue and impregnants. Developed by Dr. Erwin Thoma, the Holz100 system achieves the highest values in terms of thermal insulation, energy saving, durability, fire protection, and protection against extreme temperature differences.

Healthy living

More and more people dream of having their own country house in their desire for a healthy living environment. Choosing the right building materials that do not negatively affect health is of great importance.

Toxic residues from building materials and furniture can release harmful particles for a long time. They are considered a potential cause of allergies and other diseases. The health effects of the evaporation and natural decomposition process of plastics, various types of foils, solvents, adhesives, formaldehydes and other construction chemicals that make up the immediate environment in which a person lives can have serious consequences.

In order to avoid such diseases forever, it is extremely important to consciously choose biologically harmless building materials with a full declaration of the materials used.

The list of materials used in the Holz100 system is short: wood.

Holz100 consists only of moon wood.

Holz100 is not only a completely harmless building material, but also supports the immune system, strengthens the nervous system and promotes a longer life. Wooden rooms have a calming effect on us, saving us hours of stress every day.

Natural insulation

Wood is an excellent natural insulation and maintains the temperature in the house. The innovative Holz100 construction provides twice as much insulation as solid or glued wood, which puts this material at the forefront of global thermal insulation. This makes it possible to create independent passive houses without the need for additional insulation and complex construction solutions.

Wood itself has excellent insulation properties, thanks to internal ultra-thin air layers, and the insulation value of Holz100-Thermo is twice as high. The possibility of installing Holz100 thermal walls without additional insulation is another advantage of this material. In addition, the thermal conductivity λ for Holz100-Thermo is only 0.079 W/mK, which is a world record in the field of building materials.

An experiment conducted at an indoor temperature of 21 °C and an outdoor temperature of -10 °C showed that the Holz100 house needed 777 hours to drop the indoor temperature to 0 °C, while a “passive” house with a standard wall went from 21 to 0 °C in 41 hours, and a house with brick walls and insulation – 259 hours. This proves that the average Holz100 house uses only 1/3 of the energy needed compared to a traditional house with the same R-value. There are also houses built from Holz100 that do not need a heating system at all, using passive heating from people and appliances, as well as solid thermal wood. This keeps them cool in summer and warm in winter, acting as air conditioning and heating systems with zero energy consumption.

Cold, uncomfortable wall surfaces and fluctuating air humidity values are incomprehensible to wooden houses. Wood has an excellent heat storage capacity compared to other building materials and therefore cools down very slowly. A wooden house not only warms up in winter, but also remains pleasantly cool in summer. Summer heat spreads just as slowly from the outside to the inside as heat from the heating from the inside to the outside. The Thoma Holz100 wall not only offers fantastic U-values, it also controls much more. As a solid, monolithic, plant-based building material, it has a unique heat storage capacity of 2 times higher than conventional mineral building materials. This results in particularly good cooling times, as the Holz100 wall combines very good U-values and very good storage capacity values in a unique way.

Seismic resistance

Thanks to the connections between the elements in the Holz100 system, which are not completely “rigid”, the system becomes flexible and is characterized by exceptional resistance to horizontal accelerations occurring during an earthquake.

Fire resistance

The Holz100 solid wood wall achieves better fire safety ratings than concrete and brick ceilings, as well as walls with a wooden load-bearing structure used in standard, modern prefabricated homes.

The solid wall elements of the Thoma Holz100 system retain their full load-bearing capacity even when exposed to fire at temperatures of 900 to 1000°C for up to 150 minutes.

During tests, the Holz100 wall on the side opposite the fire only warmed up by a maximum of 1.8 °C after 120 minutes. Even at extremely high temperatures, this wall remains statically stable for hours. The charring process on the wood surface further slows down the rate of combustion and provides greater protection for the occupants and firefighting teams.

1 2 3

Soundproofing

Holz100 provides excellent noise reduction thanks to its durable construction. By using double walls and specially designed ceilings, Holz100 offers solutions that go beyond standard acoustic insulation requirements.

Noise can negatively affect the quality of life of many people by disrupting well-being, concentration, and communication. Frequent noise exposure can lead to reduced work capacity and increased susceptibility to illness.

In newly built houses, it is possible to provide significant noise protection at the design stage without incurring additional costs. In addition to the use of acoustic joinery, the choice of the appropriate building material is a key element. Lightweight prefabricated houses offer only a low level of noise protection, while brick or concrete walls can act as “sound bridges” that transmit noise.

In the past, wooden houses were known for their poor sound insulation, but now, thanks to innovative solutions such as the Thoma Holz100 walls, wood has become an ideal building material for creating peaceful places to relax. An example of this is the Waldklause Hotel in Längenfeld in Tyrol, considered to be probably the quietest wooden hotel in the world, where the sound insulation is twice as high as standard values.

Radiation protection

In a study conducted by the Thoma Research Center, more than 100 different building materials and their combinations were tested at the University of the Federal Armed Forces in Munich to investigate the attenuation of technically generated high-frequency waves. During the measurements, it was analyzed how much of the radiated power penetrated the test samples.

Thick wooden walls showed the best results!

Contrary to all expectations, wood and in particular the tested unglued version and the completely solid Thoma Holz100 wall proved to be much more shielding than, for example, brick walls or lightweight building systems.

These are the values for a 17.6 cm thick Thoma Holz100 wall:

At 900 MHz (D-Net), only 25% of the waves penetrate the wooden wall.

At 1800 MHz (E-net), only 10% of the waves pass through the wooden wall.

At a frequency of 4 GHz, only 1% of the waves pass through a wooden wall.

Starting at 6.5 GHz, less than 1 in a thousand waves penetrate a wooden wall.

(Results based on measurements carried out by the Federal Armed Forces University Munich, Faculty of Electrical Engineering, Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany)

Moonwood

How does wood become a material that can withstand the elements for thousands of years without damage? Three things are responsible for the long-lasting quality of wood. These are firstly the selection of properly grown trees, secondly the harvesting of the wood at the right time and thirdly the proper storage, drying and processing of the wood.

The time when the sap is dormant and the cutting of wood when the moon is waning form a thread through the history of the relationship between humans and trees. From the time of Julius Caesar, through the Middle Ages and the Renaissance, there is evidence that people knew the right times to cut wood.

Moonwood, cut when the moon is waning, has more bound water in it. This means that when it dries, it shrinks more. This makes the wood denser, more resistant to pressure and also more resistant to fungi, insects or fire.

Moonwood offers almost no food for pests, is denser and therefore naturally more durable than conventionally harvested wood. This means that you can safely avoid the use of toxic wood preservatives.

In 2003, at one of Europe’s most renowned technical universities, ETH Zurich, Professor Ernst Zürcher began a research project with an initial focus on investigating the relationship between time rhythms and plants in general. The germination of seeds from various trees and plants was studied in relation to the rhythm of the lunar phases. It was shown that the germination rate, the degree of germination, the average height and the height of the plants after four months were linked to the phase of the moon. Further research revealed that the trees pulsate precisely with the moon-controlled tides of the ocean. As the moon waxes, the trunks also become thicker. When the moon wanes again, they thin out again. The diameter of the trees becomes thicker and thinner in the rhythm of the tides – albeit only by a few hundredths of a millimeter, but still measurable.

In a real weathering test, in which a large number of fungal spores work together on the wood, Prof. Zürcher investigates the validity of the old rules for felling trees and manages to show for the first time that the moon tree is more durable and weather-resistant than conventionally cut wood.

He discovers that the water in the tree is something completely different from the water in the glass. The connection between the water and the wood cells, the movement of the liquid in the honeycombs, the cascades and the finest capillary tubes are subject to various physical influences. For example, the water in the finest capillary tubes can assume a gelatinous state and remain liquid down to -15ºC.

Mature logs from our mountain forests, as well as proper storage and slow drying, which is better described as aging, preserve healthy cell structures and the best possible wood properties in your wood.

Three promises from Thoma Holz100

The healthiest house
The power of trees has a rejuvenating, relaxing effect on us, boosts the immune system, makes us sleep deeper and our heart beats more peacefully, promotes creativity and joy of life. Scientifically proven, implemented by Holz100.
Zero energy costs through Holz100.
It works! 7,000 m2 office building in Kitzbühel, where users do not pay operating costs for heating and cooling, because the sun’s rays are sufficient. The first real five-story all-wood building in the center of Hamburg, the Austrian Film Archive near Vienna, with constant temperatures all year round without energy costs.
For the first time, a real, honest circular economy
Only renewable, PEFC-certified, domestic wood is used for Holz100, harvested at the right time – in winter during a waning moon. Moonwood replaces glues and all kinds of construction chemicals. This is the best and natural protection for wood.
All properties of the Holz100 product have been tested by recognized research institutions, such as the universities of Vienna and Graz, the University of the Federal Armed Forces Munich, the Fraunhofer Institut Stuttgart, and the Institute for Fire Protection and Safety Technology Linz, certified. After all, this is the first GOLD certification of a Cradle to Cradle building system, the most difficult economic label for sustainability.
The uncontaminated material, following the example of the forest, is the ideal material that turns a disposable product into a recyclable product. Our great-grandchildren will find valuable material that is no longer a burden.

There are already over 2,500 buildings built with the Holz100 system in 33 countries around the world, and Bulgaria is also included in this list through our exclusive partnership with Thoma.