Architecture in the Cycle of Nature
With the first complete waste-free cycle concept in the construction industry, Thoma Holz100 has shown that the approach of working together with nature is better from a technological and business standpoint. Our principle of waste-free construction is inspired by the forest.
Thoma Holz100 was founded in 1990 by a forester who wanted to build the healthiest house for his children. Today the company is famous around the world for its environmentally friendly approach to business.
From a Single Source
Thoma takes care of the entire raw material chain from logging the timber to producing finished Holz100 elements. The Gußwerk sawmill which Thoma operates is the largest moonwood sawmill in Europe, and the components for Thoma houses are manufactured in two Holz100 plants. The exceptional quality can thus be assured right up to the finished house.
Valuing Creation with Wood
Felling trees at the right time, a careful drying process and handmade construction materials. Holz100 processes wood according to strict principles, which are far beyond the current industry standards. That’s how we create sustainable value with wood.
Over 1,000 Healthy Homes Around the World
The patented Thoma Holz100 construction surrounds its inhabitants with pure, solid wood. Stepping into this non-toxic, chemical and glue-free house immerses you in the energy and magic of trees, where you can also marvel at the finest, high-tech wood technology. Our best testimony are the thousands of delighted owners of Holz100 homes.
It would be worth writing a whole book specifically about proper construction methods. Here are some worthwhile recommendations which should be followed by you, the architect, biological building officer and trades people.
1. Protect the building materials and construction from rain and moisture.
Avoid lengthy exposure to the weather and finish the roof quickly. (Use well-seasoned wood)
A wide enough roof overhang prevents direct contact with rain and is more effective than any treatment. Old, wooden buildings always have a wide roof overhang to protect external walls and cladding.
Keep wood off the moist earth. Cladding and posts should never end up in the ground or soil. Make sure you build on sufficient foundation made from brick, concrete or rock.
For an external cladding the vertical facade is preferable to horizontal. Water can run off all the wooden components which are exposed to rain and dampness and doesn't pool.
Weather boards are to be installed onto a slatted frame allowing free air movement and circulation to wooden building components.
Condensation, Frost and Foils:
To build a more energy efficient home, more and better thermal insulation is in demand. However, proper insulation needs to dam and should not seal. Avoid water and air tight foils (vapor barriers) and rather use a recommended vapor retardant instead of a barrier. Condensation and dew water still remain risky for wood frame walls.
It is important to ask professional tradespeople about all types of insulation. Ask them to calculate the dew point for every ceiling and wall construction and to confirm their results in writing. At a later point a vapor retardant might get injured and cause damage. The best solution is a solid, homogenous wooden wall like the Holz100 system presents. Here the vapor pressure is continuously slowed down instead of suppressed by a single, vulnerable layer of foil and guarantees 100% protection from condensation moisture and fungus.
To constructively protect your building, you need a tradeperson who appreciates this type of work. Luckily those kind of people do exist and their numbers are rising.
2. Be aware of water transportation by dry rot:
There is only one, very rare exemption which can infest even very dry wood. The true dry rot needs damp wood (more than 20%) to grow, however, once established it can grow several meters long in up to one centimeter thick strands. These strands transport water to neighbouring, dry areas and dampen these for the infestation to spread.
How to prevent dry rot? If the house has been built in a constructive and proper way, it usually is enough to make sure there are no rotting piles of wood, old building parts or off cuts which provide feeding and breeding ground anywhere close to the building.
When restoring the building, all infested wooden components should be generously removed and any existing strands of fungi should be eliminated from the masonry, brick and stone work with a blowtorch.
Realistically, in all the years of our professional building work, we never came across any dry rot in wood which has been dried, stored and worked with properly.
We Build the World's Healthiest, Greenest, Safest 100% Solid Wood Prefab Homes with the Highest Building Standards
'Eckhart Tolle Reveals How to Silence the Voices in Your Head' in OPRAH
“Look at a tree, a flower, a plant. Let your awareness rest upon it. How still they are, how deeply rooted in ‘just being’. Allow nature to teach you stillness. When you look at a tree and perceive its stillness, you become still yourself.” – Eckhart Tolle, one of the greatest spiritual leaders of our time
HEALTH – YOUR GREATEST INVESTMENT
We don’t notice right away, but why do we get headaches and feel dizzy or suffocated in large stores or new buildings? The reason is simple. According to EPA, “Americans, on average, spend approximately 90% of their time indoors”, where “concentrations of many VOCs are consistently higher indoors up to ten times higher than outdoors… VOCs include a variety of chemicals, some of which may have short and long-term adverse health effects”. Conventional building materials pollute the air we breathe with dust, VOCs, allergens, and off-gassing due to chemicals, toxins, glue/resins, paint, varnishes, stains, and so much more that we do not see but feel over time.
A long-term exposure to hidden toxins induce stress and can trigger serious stress-related health consequences, including obesity, type 2 diabetes and related cardiometabolic complications. Three of the ten top causes of death in the U.S. include cardiovascular disease, cancer, dementia or Alzheimer’s disease correlated to long-term exposure to such environments are exactly the ones minimized by wood. During sleep in a pure wooden home, the heart rate slows down so that a person saves 1 hour (3,000+ heartbeats) a day and reduces overall stress - as if you were sleeping in a forest.
BUILD WITH WOOD
Do you know about the various associated health benefits of wood? Based on extensive research ("Make it Wood" by Planet Ark), numerous independent studies taken all over the world clearly demonstrate that the presence of wood has positive physiological and psychological benefits that mimic the effect of spending time outside in nature.
For example, wood improves your emotional state by increasing levels of happiness, self-esteem, cognitive abilities and self-expression while reducing blood pressure, pulse rates, cholesterol and stress levels.
Using wood in schools and daycares reduce exposure to stress during childhood and adolescence which decreases the probability of stress-related mental disorders later in life. Natural wood in hospitals and senior’s homes increase interaction, engagement, positive self-expressions elicited by the feeling of warmth, comfort, and relaxation which reduces stress, anxiety, risk of dementia and recovery time which shorten hospital stays, therefore reducing medical costs. Within commercial or corporate environments, the presence of wood drastically influences first impressions as it conveys feelings of innovation, energy, comfort, and improved productivity. Most consider wood to be visually appealing, has a natural look and feel, and is more versatile, recyclable, renewable and long lasting compared to brick, concrete, steel, aluminum, and plastic.
Not only do wooden living spaces improve its residents’ emotional, mental, and physiological state, but responsibly sourced and certified timber is also a formidable weapon in the struggle against climate change by both storing carbon and eliminating emission.
Contrary to the great misconception that wood cannot be fireproof, heavy timber construction has an inherent level of fire resistance which increases with thickness as the outer layer chars and becomes a protective insulation layer that slows down the burning rate. The strength and load carrying capacity is not as compromised as steel which buckles under extreme heat due to its significantly higher thermal conductivity and allowing heat to spread rapidly, causing beams and floors to collapse.
CHOOSE HOLZ100 FOR YOUR DREAM HOME
Holz100 (“holz” = wood in German) is a cross-laminated, prefabricated 100% pure solid wood building system connected by wooden dowels – it is the product of our founder Dr. Thoma’s aim “to build the healthiest house in the world – with the highest standards of build”. Holz100 is therefore the ultimate all-in-one solution for health, safety, sustainability, and wellbeing for both people and the environment. It is the Certified by both FSC and PEFC, our wood is harvested at the ideal time (‘moonwood’ or lunar harvested) in high altitudes, selectively hand-picked and air-dried for the highest quality achievable for timber products. These methods collectively ensure that even without a trace of of preservatives, glue, toxins, chemicals, or VOCs, our building system ensures extraordinary longevity and quality that results in no air leakage, shrinkage or thermal bridges.
Patented internationally, Holz100 is the most unique and exclusive product which fulfills most, if not all,ideal building standards which includes a world record in thermal insulation, a fire safety rating 5 times better than of any other conventional building system (in case of fire, poisonous vapors are non-existent and there is practically no increase in surface temperature opposite side of the wall – allowing Holz100 to be used as firewalls), 99.9% barrier to electromagnetic radiation and achievement of passive house standard ratings for energy use and airtightness. Forces of nature has a minimal effect on Holz100 structures as it has survived numerous earthquakes in Japan without any damage, has defied the strongest storms in German coastal regions, suffering no major flood damage and are easily habitable after flooding.
As Holz100 is composed exclusively of unadulterated wood, it results in an indoor climate with no boundaries between the layers impermeable to vapor and humidity; hence why we offer a 50-year guarantee against mold and condensation. Holz100 is an oasis of well-being with perfectly natural thermal insulation, storage and buffering which brings pleasant warmth in winter and a comfortable coolness in summer. Holz100 also naturally stabilizes the temperature and humidity fluctuations high energy efficiency and low energy cost which air tightness ensures any heat loss. Holz100 is a dream for allergy sufferers because of the fungal resistance of the exclusive moonwood we use and its natural reduction in household dust.
Holz100 is the first building component system ever to receive a GOLD Cradle to Cradle certification as a material completely waste-free in its life cycle: a resource-efficient product which allows for reuse and avoid landfill waste. We use only solar energy and produce more energy than we use in the processing / manufacturing of our elements.
Wood is durable, low maintenance, and ages gracefully over generations and centuries, making it a timeless product of increasing value. The built environment with Holz100 will enhance therapeutic experiences and impact the body’s ability to heal, rejuvenating and reviving your wellbeing – your home should be a place of learning and healing.
All product properties of Holz100 have been certified by renowned research institutions including the Universities in Vienna and Graz, University of the Bundeswehr in Munich, Fraunhofer Institute Stuttgart, Institute for Fire Protection and Safety Research in Linz. At first glance, these improvements and possibilities are nearly unbelievable. We combined our ancestors’ traditional methods with modern technology and found the ultimate solution needed in the 21st century. We are focused on raising its standards and efficiency in order to fulfill the clients’ needs and wishes and to be able to actively maneuver in the potential markets in which it has been our privilege and pride to implement hundreds of projects all over the world.
Wide Holz100 planks made exclusively of 100% pure moonwood
^"WOODCUBE", This first high-rise building class 5 was built entirely of wood (Holz100) and without gypsum encapsulation. Deemed a 'Smart Material House' by IBA Hamburg, Woodcube holds passive house energy standards, is carbon neutral, and provides incredible health benefits for its residents.
Important Links & PDFs
Company Website | www.holz100canada.com
"Make it Wood" by Planet Ark
A great resource for research on wood and its health benefits
WOODCUBE - Smart Material House
An introduction, outline, and details of the award-winning Holz100 project (IBA Hamburg)
Holz100 Canada Booklet 2017
A comprehensive introduction booklet to our building system, by Holz100 Canada Inc.
Holz100 Parts Catalogue 2017
An extensive catalogue of all available Holz100 elements, including technical information.
More Resources | Links & Downloads
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240 Duncan Mill Road, Suite #500
Toronto, ON M3B 3S6
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Detached house in Upper Austria
A wooden house with a pool and sauna was a long-cherished dream for the homeowner. With the roofs of the wrap-around balcony and the terrace, many weather-independent dwellings were created and completed to perfection.
On a flower meadow in the Dachauer Hinterland
Through the clever combination of photovoltaic and the Holz100 solid wood building system, this house generates more energy than it consumes.
OASIS Healing House
In a fantastic location overlooking the Baltic Sea is the ecological building materials OASIS Healing House completely built of Holz100. Located in a large garden, in addition to the lovingly designed guest rooms and apartments, the house offers an excellent vegetarian cuisine, meditations, yoga, and physiotherapeutic treatments.
Extremely high growth rates in mobile communications have led to several hundred million mobile phone owners throughout Europe since the 1990s. The impact of this "flood on the sky" on human health is still a hot topic.
Damping values of different building materials in comparison.
Scientists from neutral research institutes have found that there are no longer any effects of low-frequency pulsed high-frequency signals on biological processes and on the nervous system in their studies.
As part of an investigation of the Thoma Research Center in Goldegg more than 100 different building materials and their combinations were tested at the University of the Federal Armed Forces in Munich for their attenuation for technically generated, high-frequency waves. During the measurement it was examined how much of the emitted power penetrates the test specimen.
The result provided the best values for thick wooden walls!
Contrary to all expectations, the building material wood - tested in the form of non-glued, fully solid Thoma Holz100 walls - shields considerably better than, for example, brick variants or lightweight construction systems.
Here are the damping values of a 17.6 cm thick Thoma Holz100 wall:
At 900 MHz (D-Net), only 25% penetrate through the wooden wall
At 1800 MHz (E-net), 10% penetrate through the wooden wall
At 4 GHz, only 1% penetrate through the wooden wall
Starting at 6.5 GHz, less than 1 per thousand already penetrate through the wooden wall
(According to measurements of the University of the Federal Armed Forces Munich, Department of Electrical Engineering, Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany)
Building with the forest:
Holz100 is 100% free of toxic building chemicals. But it gets even better - with Holz100, you're surround by solid wood; just like second skin. Free of harmful off-gassing, and instead it provides its inhabitants of invigoration and healing. The Holz100 house is the best foundation for deep, healthy sleep and an active, dynamic life full of strength and tranquility.
For many, the dream of owning a house in the countryside is linked to the desire for health and exposure to nature. The choice of the main building material, one which does not burden the health, is particularly important.
The development of new building materials has progressed rapidly since the 1970s, and today everything seems technically feasible. But there is also a steadily rising number of health complaints, the causes of which could be traceable to the immediate living environment. Residual poisons found in some building materials and furniture can release polluting substances for years. They are considered as possible causes of allergies and other diseases as well. The health effects of evaporating plastics, foils of all kinds, solvents, adhesives and other construction chemicals are always posing new challenges.
The key point for a sustainable preventative measure of such avoidable diseases lies in the conscious decision for building with biologically harmless materials. For this reason, builders increasingly demand from planners, property developers or suppliers a full declaration of the processed material from resource, harvesting, and manufacturing. For Holz100, this list of declarations is short: wood. Holz100 is made entirely and exclusively of high quality wood.
With Holz100, not only does it surround its inhabitants with a completely unadulterated building material, Holz100 also strengthens your immune system, calms your vital nervous systems and helps you to live longer. Wooden rooms are so reassuring to our body systems that every night (proven scientifically), we save ourselves an hour of heartbeats each day.
These and other new research results on the health-promoting effects of wood are presented in many, various ways - such as Planet Ark's "Make it Wood" campaign.
Holz100 Canada Inc.
Forests & Energy
Trees & Wood
What To Avoid