Part 3 - Traditional Japanese Carpentry - Daikushijuku - Itakura House - Maruta and Jigumi

Traditional Japanese Carpentry School - Daikushijuku - Final Project - Itakura House Build - Part 3
In this video, we are back in Kannamachi, Gunma, Japan at the Daikushijuku, a school to learn Traditional Japanese Carpentry. We get a chance to learn more carpentry and also help out with building a very traditional Japanese house in the style of Itakura and Ishibadate. These two construction styles are complex and beautiful.
This video will also showcase the Maruta (丸太) calculation. The Maruta is the round beams that are typically found in a Japanese house and is often reserved for areas like the main living space or living room. Later in the video we also begin the Jigumi (地組) process which involves the dry-fitting of the Hari (梁) or horizontal beams. This is an important process which includes double checking the length of the beam across the hand cut joints.
In an Itakura House the walls are made of Sugi, or Japanese Cedar. These walls are thin compared to modern homes. The thickness is 30mm and there is no insulation. However, the health and comfort aspects of a house made entirely of wood is hard to beat. it is surprising that with limited insulating quality the house is surprisingly cool in the summer and warm in the winter with the installed wood stove. It is a house designed to showcase how healthy it can be to live in an entirely wood house. The cedar is useful for absorbing odors, VOCs, and even humidity. The most notable thing is probably the humidity control capability of an all wood house.
The Ishibadate style features building a house on top of stones which is very common in Japan as a building style. Most temple construction is designed this way and there is a reason for this. in an earthquake prone country building on top of stones enables the house to move and not bind up and endure too much stress from being fixed or bolted to a concrete slab. We would also say that building on top of stones makes for a more friendly house renovating ability. It is easier to crawl under the house in the event something needs to be replaced or changed. This aspect is a very nice feature for those that are handy enough to handle a majority of their own house maintenance.
So, let's get into it with Part 3 of this unique build!
#woodworking #japanesewoodworking #carpentrylife #timberframe

[@rolandgdean]

I'm LOVING the work boots with the natural big toe built in. OSHA here in the U.S. would FLIP if someone was on a job site like that without steel toed boots on. I like how they've realized that sure-footedness is the safest way to go. I've often argued that if we absolutely put "safety first" then we will get next to nothing done...there must be a balance.

[@yunisshaik4143]

Excellent and so beautifully presented. I find myself savouring every episode and waiting expectantly for the next. It is a real joy to a subscriber

[@KoNiFluSh]

amazing to see thats brillant work from japan! Thank you for sharing all that with us :)

[@johnland7318]

The lesson on the beam of wood was fantastic, the whole drawing with out hesitation or a mistake, perfect. I have to really look again at the two books I have about Japanese woodworking tools and The Japanese house.

[@wendellwitt856]

I enjoy your content. The knowledge and expertise that goes into a home is so impressive.

[@ra4yu]

i could set out a roof in minutes, im no stranger to trigonometry but there's something about japanese joints and carpentry i cant figure out that just seems like magic.

[@braydeny]

These are a great resource for the planet

[@DannyGo17]

Great videos and content. I really enjoy the level of detail you go into. Thank you from the east coast of Australia.

[@raytheron]

Fab! Love seeing a new video from you, and looking forward to the next parts!

[@pmrich7035]

That was a great lesson. He explains very well the design and layout of the curved beam.

[@AeonCatalyst]

holy crap I GET IT NOW

[@rexdale4life]

Wow, lots of great information given in the this video! Thanks!

[@friendlylocal3731]

Love it. Thanks for the little details.

[@rodrigotroncoso3374]

Great video!!! Loved it!!

[@samalcantara5597]

Amazing. It’s my dream to work as a carpenter in Japan. Any recommendations are greatly appreciated!

[@adamallen8863]

Same

[@hydrogenbond7303]

Math is universal language.

[@anthonywall5227]

Thank you

[@arncj18]

where can i find Ishibadate videos?

[@rodrigotroncoso3374]

Hello! I recently saw a video about traditional japanese timber house being earthquake tested, and the key feature was that they slide on top of the rock in te base. My question is if you know how the houses fixed with screws on top of concrete perform in case of an earthquake?

[@thecarpentrylife]

This is a good question. Please forgive me, but I can not answer this question accurately. I don't know the results of any testing, but I do know that there are strict regulations in Japan when it comes to how houses are anchored. I know that regulations change depending on building materials and the sizes of those materials. Choices of joinery also plays a critical roll. I have been to several build sites in Japan and have noted a variety of different joinery depending on what foundation has been placed.

[@rodrigotroncoso3374]

@@thecarpentrylife Thank You!! Keep the great work!!

[@ericl6460]

Do you watch "Shoyan Japanese Carpenter" on youtube? You gotta find where he lives and do a collab!

[@thecarpentrylife]

Hahaha. Good idea.

[@Nathan-ct8tt]

😌 promosm

[@zeussat9148]

Jesus the bot comments here aren't even subtle. Be less generic.

[@thecarpentrylife]

Thank you for watching.