Why are natural materials important?
Because it is closely related to health.
The route through which harmful substances enter the human body is
“Eat by mouth”,
“Contact the skin”,
There are three types.
Of these, the fastest poisoning to the body is from “breathing.”
In case of fire, the high number of cases in which a person is killed by harmful gas than the flame. It shows the fear of “from breathing”.
Volatile organic compounds are emitted into the air from building materials.
Currently, formaldehyde is regulated, but even ☆☆☆☆ is not zero.
If you are a sensitive person, even ☆☆☆☆ will react.
Moreover, we don’t know how much other chemical substances are contained, so if we take it seriously, it’s a scary story.
Naturally, some natural materials are harmful, but the ones used in buildings have been familiar to the Japanese body for a very long time if those are made in Japan.
Therefore, it is very safe and secure as long as those are not added any extra substances such as additives.
Building a house with natural materials
Nowadays, there are quite a lot of natural materials on the market, and while I think it’s a good time, I often think that it’s sloppy and loosely, not properly done.
While using natural materials as a promotional phrase. but chemicals has been added.
It may be aimed at the advertising effect using natural materials.
Almost all plaster walls have chemicals added to the adhesive.
Check the natural materials carefully!
How to use natural materials is also important. In order for natural materials to live long, they need to be used in a well-ventilated place.
If you do not use it in a place where it be able to touch the flowing air, it will be easier for rotting fungi to grow, and it will also attract mold and mites.
When that happens, the problems of the past will reoccur again.
The cause of atopy and allergies was in the house, and as a countermeasure, pesticides and chemical substances such as fungicides were used in building materials as a countermeasure against mold and mites, which caused the problem of multiple chemical sensitivity.
Nowadays, the technology to eliminate the odor of pesticides and chemical substances has been developed to prevent the odor from being felt, so the problem is becoming more serious by being latent.
In principle, natural materials should be used in a well-ventilated place to prevent mold and mite. However, the current situation is that such usage is rarely used.
Also, it is not uncommon for natural materials to contain pesticides and chemicals. The problem is getting more and more complicated.