韓国サンチェオン郡にあるストローベイルハウス Straw Bale Homes in Sancheong, South Korea

Korea Permaculture Institute 韓国パーマカルチャーセンター

October 7-9, visited the Korea Permaculture Institute in Andeok (전북 완주군 구이면 안덕리) run by Dr. Kyeongsoo Lim of E-Jang.  The permaculture institute is located adjacent to a Korean sauna, restaurant and herbal medicine clinic.  10月7-9日にリム先生が運営している韓国パーマカルチャーセンターを訪ねました。パーマカルチャーセンターのすぐ近くにサウナやレストラン、漢方のクリニックがあります。

 

Guest Houses　ゲストハウス

韓国でのストローベイル建築の普及活動 Straw Bale Building in South Korea

10月7日午後にジナン郡にあるストローベイルハウスを4件見学しました。ホン・ソンチョンさんとイ・オンヘイさんというストローベイル・ビルダーに会いました。イ・オンヘイさんはオーストラリアでストローベイル建築を勉強して、ホン・ソンチョンさんと一緒にホン・ソンチョンさんの住宅を建てました。ホン・ソンチョンさんの住宅が韓国の最初のストローベイルハウスです。On October 7, we visted several straw bale buildings in Jinan Country being built by Mr. Hong Soon-cheon and I Oong-hei. Oong-hei studied straw bale building in Australia and together with Soon-cheon, they built Soon-cheon's home, the first straw bale home in South Korea. 

ホン・ソンチョンさんの本職が編集者で、ストローベイル建築に関する素晴らしい本を書きました。現在、ホン氏はストローベイル建築の設計と施工を両方行っています。Soon-cheon previously worked as a writer and editor and wrote an excellent book on straw bale building in Korean. 

構造が面白くてダブル・ツーバイフォーフレームの間にベイルを積んで、圧縮してからどぶちでベイルを固定します。Very interesting and educational to see their techniques. There were four straw bale buildings at different stages of constructions so we could see much of the process. Bales are stacked in a double 2x4 frame, compressed and secured by 1x1’s spanning the interior and exterior frame.

草刈機で壁面の内側と外側を揃いてから、割竹を横に張ります。The exterior and interior surface of the bale wall is trimmed with a brush cutter, which creates a flat wall and produces plenty of straw fibers for the plaster mix.

きれいな壁面ができます。Bamboo lath are attached horizontally across the interior and exterior. 

下塗は土のみで、中塗は粘土と砂、藁スサと一割消石灰ですが、消石灰は上塗に入ってないです。A base/scratch coat of clay is applied and followed with a fill/brown coat of clay, sand, straw fibers, and 10% lime.

最終的に埃が落ちないようにお米から作られたのりをはけで塗ります。The final coat does not contain lime and is treated with a rice glue finish to prevent dusting.

韓国ジョンジュ市 Jeonju City, South Korea

6日にインチョンに着いて、バスでジョンジュ市へ行きました。

Arrived in Seoul on October 6 and took a bus to Jeonju in southwestern Korea. Jeonju is famous for its traditional architecture and good food. On the evening of the 6th we had dinner with Bohyoung Sohn and Professor Lim at a restaurant where one purchases a pot of Makkori, a fermented Korean rice drink (about 5% alcohol), and a table full of side dishes comes complementary. On the morning of the 7 we toured the town of Jeonju.

 

7日午前中にジョンジュ市にある伝統建築を見学しました。

Hanoak, traditional Korean architecture

ジョンジュ市の住宅がほとんど瓦屋根です。

Jeonju is famous for its tile roofs

瓦で屋根を葺いている現場を2軒見学しました。

Visited two homes being roofed with tiles

赤土で瓦を固定していました。

Red clay soil is used to secure the tiles and provide insulation.

垂木の上に竹小舞をかけて、土を載せて、断熱を取ります。下から漆喰を塗ります。

A lattice of bamboo is built on top of the rafters to support the red clay soil, and plastered from below with lime

ストローベイル建築の耐震性 Earthquakes and Straw Bale Building with some radiation

10月3日にストローベイル壁内温湿度データを回収しに福島県飯舘村へ行ってきました。2010年2月にまでな家モデル・エコ住宅に付属している作業場でストローベイル壁を作りました。去年下塗だけ塗って、今年中塗と上塗を塗る予定がありました。しかし、放射能汚染のせいで、飯舘村が全体移転します。

までいな家キッチンガーデンの空中放射能量が2.33マイクロシーベイルト/アワーです。

Atmospheric radiation level of 2.33micro-seivert/hour recorded at the adjacent kitchen garden.

October 3rd traveled to Iitate Village to collect hygrothermal data from a straw bale wall built in February, 2010.  Initially, only the base coat was plastered.  The brown and finish coats were schedule to be done this year.  But those plans ended with the March 11th 2011 Tohoku earthquake and subsequent radioactive pollution.  It was recommended that the entire community relocate.

3月11日に飯舘村での震度は6弱です。までいな家のアースオーブンが崩れたり、オーブンの屋根のアンカーボルトが曲がたり、舗装が割れたりしました。しかし、ベイル壁に皹割が入らなかったです。地震に対して、在来軸組構法とストローベイル壁の融合性能が証明されたと考えられます。

On March 11th, Iitate Village experienced a weak 6 on the Japanese 7-level seismic scale.  Near the straw bale building, the earthen oven I helped build last year was thrown off its concrete stand, the anchor bolts of the roof structure over the oven were bent, and there were cracks in the concrete pavement around the building.  But there wasn't even a crack in the straw bale wall.  Although the success of the straw bale wall can be credited to the building's timber frame, it provides an example illustrating the earthquake resistance of this form of timber frame-straw bale building.

   

大島邸 Oshima's Straw Bale Home

On October 2nd, installed temperature and relative humidity sensors in the straw bale walls of Hideto Oshima's straw bale home in Gifu-Prefecture.  10月2日に岐阜県にある大島邸のストローベイル壁に温湿度測定センサーを設置しました。

大東文化大学 Daito Bunka University

9月26日から29日まで東京で行われたUIA世界建築大会に参加しました。27日に論文を発表して、29日にUIAのツアーとして、東京にある環境建築を3箇所見学しに行きました。
September 26-29th, participated in the International Union of Architect's 2011 conference in Tokyo.  Presented a paper on the 27th and attended a tour of three "green" buildings in Tokyo on the 29th.

その一つは中村勉先生に設計されました大東文化大学です。

One of those buildings was Daito Bunka University designed by Ben Nakamura.

 

透明の太陽光発電パネル

Transparent photovoltaic panels

自然エネルギー掲示板

Renewable Energy Meter

Straw Bale Home in Karuizawa 伊藤邸in軽井沢

September 1-9 and 12-15 finished the interior of a straw bale home in Karuizawa, Nagano Prefecture.  September 3-4, we had a small workshop which was very helpful.  A description of the workshop and photos can be found at the link below.

9月1-9日と12-15日に長野県軽井沢にある伊藤邸のストローベイル内装を仕上げました。9月3-4日にワークショップを行いました。とても助かりました。ありがとうございます。ワークショップの様子は下のリンクで見えます。
http://blog.sideriver.com/kolonihave/2011/09/post-73e2.html

Plaster in bathroom consists of zeolite, lime, volcanic soil from the building site, fiber and seaweed glue

Earthen plaster finish

Brown coat on exterior

Hijisai (土祭) Earth Festival

September 11 attended Hijisai (土祭), a festival featuring earth.  The name literally means soil festival. 

 

Rammed earth stage constructed by Hasado Shuhei-san, a renown plasterer in Japan 

Earthen plastered display

水硬性石灰 カナダの土壁 大津 Hydraulic Lime and Otsu Earthen-Lime Plasters at Harvest Haven Health, Lethbridge, Canada

August 1-23, traveled to Lethbridge, Canada to help plaster several buildings at Harvest Haven Health, an eighty-acre, organic, mixed market farm with an on-farm store. The farm is a synergistic diversification of beef cattle, sheep, layer and broiler chickens, turkeys, pasture, hay, grain fields, vegetable and herb gardens, strawberries, raspberries, bee hives for honey, and an orchard of apples, plums and cherries.

Mark and I translate for Ishibadate Online School of Japanese Timber Framing and Natural Building. In 2010, Mark invited Mr. Yoshitomo Takahashi to Harvest Haven Health to teach a course on Japanese timber framing and lead the construction of a 4000 square foot traditional Japanese timber frame.

Japanese Timber Frame

Many of the timbers were milled with a chainsaw

In addition to the Japanese timber frame "store", a home, guest house and boiler house are also being built. The store, home and guest house feature a durisol foundation and light straw clay walls.

Durisol Block

Light Straw Clay Walls

Durisol Blocks are a combination of wood fiber-cement and rock wool insulation. In light straw clay construction, a mixture of mainly straw and some clay slip are packed into permanent or removable forms. In this case, the forms are removed, leaving a surface similar to straw bale walls.

Light Straw Clay Mixer

Larson trusts are constructed onto the timber frame to accommodate the straw clay walls. The interiors are finished with American Clay and the exteriors with hydraulic lime (水硬性石灰).

Truth Window

American Clay Interior

Ben Scott of The Lime Plaster Company, lead the exterior plastering.

Ben and Mark mixing hydraulic lime


Hydraulic Lime Scratch Coat on Guest House

Hydraulic Lime Brown Coat on Guest House

Texture