"Safety is a cheap and effective insurance policy." - Author Unknown
The European standard in high-tech woodblock and frame buildings (with normal, average wall, ceiling and roof thicknesses) is maximal F30. This means that the building element resists a flame at 1,000 degrees Celsius for 30 minutes. Holz100 elements reached top ratings of up to F180! This means six times safer than the usual reinforced concrete or brick walls offer. The ceiling ratings are even better.
Why? Wood burns well when it is thin and in contact with plenty of air. However, a thick block of wood hardly burns at all. It chars fairly slowly, approximately 0.5-0.7mm per minute. In a Holz100 house, every ceiling, wall and floor is a thick, fire-resistant block of wood that serves as firewalls.
Thoma Holz100 (40cm wall):
REI 120 minutes or F90 fire resistance
Thoma Holz100 (17cm wall):
REI 60 minutes or F60 fire resistance
While flame testing reinforced concrete walls, the cold side of the wall (which was not directly exposed to the flame) was showing in some areas a +400 degrees Celsius temperature rise after only 30 minutes. This happens because the reinforcement iron inside the concrete turns glowing hot and conducts the heat rapidly throughout the whole wall element.
While flame-testing a Holz100 wall element, the hottest spot on the cold side after 90 minutes was maximal only +1.8 degrees Celsius higher than the temperature taken in the start of the test. Wood is a warmth shield and even after hours of external flame testing and heat, its innermost is quite unchanged. This is incredibly important for safety reasons, particularly in large buildings. Many fires expand faster via heat than flames. Even if this sounds incredible, it has been proven that engineered wood is safer than concrete.
"Most fire deaths are not caused by burns, but by smoke inhalation. Often smoke incapacitates so quickly that people are overcome and can’t make it to an otherwise accessible exit. The synthetic materials commonplace in today’s homes produce especially dangerous substances." - National Fire Protection Association
Since Holz100 is 100% pure wood, its inhabitants need not worry about toxic fumes. With its singular natural component combined with structural capacities akin to a firewall, it is the ultimate fire-resistant building system.
8/12/2021 08:39:22 pm
The article is disingenuous. Concrete does not burn. At all. Who cares if the interior temperature is higher who cares? It might be uncomfortable but is not dangerous and modern construction incorporates layers of insulation between the concrete slabs which makes the point moot. There are fires all over North America that burn for hours if enough fuel and wind is present and with higher wind the fire temp is increased far beyond the blowtorch temp you tout. Again, wood absolutely burns. Concrete does not.
3/4/2022 03:28:17 am
My favorite part of this article is it chars at a modest rate of around 0.5-0.7mm every minute. Every ceiling, wall, and floor in a Holz100 home is a solid, fire-resistant block of wood that acts as a firewall. Someone recently told me about this and it is different from what I understand. Thanks for helping me understand fireproofing.
It's interesting to know that the reinforcement inside which is made from iron would conduct the heat through the whole wall. I guess reinforced concrete with this material would be a good idea when it comes to the construction of our dream home. It will give us the assurance that the material will be resistant as well when there are incidents of fire in the future.
1/17/2023 11:15:32 am
I'm planning on getting a new home built, but I want to make sure that it's safe from fire. It makes sense that using fire resistant materials would be a good idea! I'll be sure to work with a professional to ensure that I put everything together properly.
3/13/2023 12:00:13 am
Thank you for pointing out that smoke inhalation rather than burns accounts for the majority of fire fatalities. My mother needs to grab the fire extinguisher. I'll advise her to get the fire protection system tested to prevent any fatalities.
5/3/2023 01:49:59 am
The Ultimate Fire Resistant Building System is a revolutionary product that offers superior protection against fire hazards. The system consists of fire-resistant panels, insulation, and coatings that can withstand temperatures up to 2000°F. The system is easy to install, durable, and cost-effective.
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