Use and development of non-combustible wood for the Olympics

Recently, inquiries from architectural firms have been increasing rapidly. Most of them are for noncombustible certification. This is a question about non-combustible wood. I want to use wood for design purposes.

As many new impregnated woods will be used at the New National Stadium, non-combustible wood is likely to gain more and more attention.

The government has issued guidelines to stimulate the use of wood for the Tokyo Olympics … but the site and ideals are far from being able to keep up with the development and relaxation of laws, and in fact the use of wood is quite limited. there is.

The most frequent inquiries to our company are “Can I get nonflammable certification just by painting on wood?”
This is a question that is often asked because of the lack of understanding of non-combustible certified wood, but at present it is unlikely that non-combustible certified will be granted at the site and application.

Non-combustibility certification is given to products manufactured in factories, and there is no permission for products that are considered to have variable quality such as on-site construction.

There seems to be some paints that have been designated as “Non-flammable just by painting” on some products, but we are skeptical of those products.

As long as the law is confirmed, it will not be a certified product by on-site application, and it is unlikely that simply applying it to wood will have the effect of passing the certification standard “corn calorimeter test”. Conversely, if the performance really comes up to the point of application, it is a revolutionary invention and it should be more widely spread in the market.

As far as we know, these products are considered to be the same raw materials as ordinary wood flame retardants, so there will be no value that passes the nonflammability test when applied.
In that case, if the construction is confirmed by any chance using that product, if there is any problem, it may be necessary to prove the certified product. This is quite risky and should be considered and adopted.

Conversely speaking, this is a product that is in such high demand, so I would like paint manufacturers to develop paints that can be certified simply by painting.

The other day, I visited Mr. Yasujima (Kanazawa City), which manufactures decompression and pressure equipment for the production of noncombustible wood. We have no plans to introduce the equipment at the moment, but I learned from many companies that we need to know about it because we are contacted by many companies regarding the production of non-combustible wood.
When I talked to the person in charge, it seems that there are certainly many inquiries. However, there seemed to be many problems with the actual production of non-combustible wood and obtaining a certification number, and you said that it was difficult.

Obtaining a completely new certification for non-combustible wood seems to be difficult, and the rigor of certification after the problem of insufficient performance of non-combustible wood seems to be very tolerated.
We are struggling to find noncombustible wood certification, as is the case with our company.