【木造】在来工法と２×４工法どっちが良いの？構造、耐震性について徹底解説！

I'm "Watchi," a first-class architect, vocational training instructor, and YouTuber! Today, I'll be explaining which is better when building a wooden house: traditional construction or 2x4 construction. Traditional construction is a method that has been used in Japan for a long time, accounting for 80% of new housing starts in the country. 2x4 construction was developed in the United States and accounts for about 20% of new housing starts in Japan. 2x4 construction was developed in the United States and accounts for about 20% of new housing starts in Japan. 2x4 construction is often said to have excellent earthquake resistance in sales pitches because the concepts of interior shear walls and structural planning rules are stipulated by law. A home can be made to have a certain level of earthquake resistance even without the designer being conscious of earthquake resistance. On the other hand, traditional construction requires that the designer be conscious of earthquake resistance and plan accordingly in order to create a strong home. Nowadays, traditional construction incorporates the advantages of 2x4 construction, and with the increasing use of panelized walls and floors, the difference between the two is becoming less significant. Rather than judging which construction method is superior, I think it's fine to consider whether they have achieved seismic resistance grade 3 as a measure of success. What we need to be careful of are used homes built before 2000. Since balanced placement of shear walls and metal joints were not mandatory, they are thought to be less earthquake-resistant than 2x4 construction. If you're considering a used home from that era, we recommend that you also undergo earthquake-resistant renovations. I'll explain more about earthquake restoration for used homes in a separate video. I hope this video will be helpful for those who are considering purchasing a new or used home, who are wondering whether to choose traditional or 2x4 construction, who are curious about home builder construction methods, and who want to know more about the earthquake resistance of wooden buildings. I hope this video will be helpful for those who are thinking about this. I'd like to upload more videos from now on! If you like, please subscribe to my channel.    / @diy-wacci   #diy #renovation #remodel #usedhouse #earthquakeproof #insulation #2x4