石場建構法の魅力
木造の家と言ってもたくさんの工法があります。石場建伝統構法とは戦前まで長い年月をかけて醸された日本独自のものです。地場の素材を組み合わせ自然と寄り添う無理のない家造りは日本の環境に優しく佇みます。
There are many construction methods for wooden houses, each with its own unique approach. Ishiba Tate, a traditional Japanese construction method, was cultivated over centuries and widely used until before World War II.
By combining locally sourced materials and embracing nature, this method creates homes that stand in harmony with Japan’s environment, offering a timeless and sustainable way of living.
優れた耐震性
現在主流になってしまった建物を基礎に緊結する方法ではなく基礎石の上に柱を乗せるだけのこの構法は地震の際、揺れにあらがう事なくまるで相撲をとるような動きをします。また、木を組み合わせ貫（ぬき）という部材を通し竹を縄で編み込み土を塗る事で建物の「面」に粘りを出し、建物に加わる地震の力を相殺します。
Unlike the modern method of rigidly anchoring buildings to their foundations, the Ishiba Tate construction technique simply places columns atop foundation stones. During an earthquake, instead of resisting the shaking, the structure moves fluidly—much like a sumo wrestler adjusting to maintain balance.
Additionally, wooden joints are reinforced with Nuki beams, while bamboo lattices are woven with rope and coated with layers of earth. This technique enhances the structural flexibility of the walls, allowing the building to absorb and counteract seismic forces effectively.
蟻害や腐朽を防ぎやすい
柱を礎石建ちにすることで風通しを良くしたこの構法は白蟻が好む湿度のある床下環境を作りません。また、住み手自ら目視による確認ができます。元来より高温多湿の夏は建物を傷める大きな原因でしたが、通気性が確保されている石場建は防腐性に優れ、住まいの寿命を大きく延ばしてくれます。
By placing the columns directly on foundation stones, the Ishiba Tate construction method enhances ventilation, preventing the damp conditions that termites thrive in. Additionally, homeowners can easily inspect the foundation visually, ensuring the structure’s health over time.
In Japan’s hot and humid summers, moisture has traditionally been a major cause of structural damage. However, with its superior airflow, Ishiba Tate offers excellent resistance to decay, significantly extending the lifespan of the home.
快適な湿度をもたらす
杣耕社は、木と土と石と竹と紙とで造られた美しく古びる建築を提案しています。接着剤や石油化合物を含まない木や土などの自然素材は、空気中の有害物質を減少させる効果があります。
これらは“呼吸する素材”であり、湿気を吸収しては乾燥すると放出します。室内の適切な湿度を保つことでカビや結露を防ぎ、快適な空気環境を作り出します。
At Soma Kousha, we advocate for architecture that gracefully ages over time, crafted from natural materials such as wood, earth, stone, bamboo, and paper. Free from adhesives and petrochemical compounds, these natural elements help reduce harmful substances in the air, promoting a healthier living environment.
These materials are often referred to as “breathing materials”—they absorb moisture when the air is humid and release it when dry. By naturally regulating indoor humidity, they prevent mold and condensation, creating a comfortable and balanced living space.
心安らぐ自然素材
木の香りや自然な色合いから来るぬくもり、土壁の柔らかな質感など自然素材に囲まれた空間は見た目にも温かみがあります。心を落ち着かせて日常の疲れを癒し、心身に安らぎをもたらします。
The warmth of natural materials— the gentle fragrance of wood, the organic tones, and the soft texture of earthen walls—creates a visually inviting and comforting space. Surrounded by nature’s elements, one can feel a deep sense of tranquility, allowing the mind to unwind, easing the fatigue of daily life, and bringing peace to both body and soul.
家が上手に年を重ねる
自然素材で構築された建物は住み手の生活と共に少しずつ表情を変えていきます。瑞々しく澄みきった新築の状態から主を守り自然にさらされ侘び寂びをまとい成熟していく様は表現し難い趣があります。外の景色と調和しながら一体化していく姿は自然と愛着を生み独特の風情を醸し出します。
A building crafted from natural materials gradually changes its expression alongside the lives of its inhabitants. From the fresh, pristine state of a newly built home, it weathers gracefully, exposed to the elements, protecting its owner while embracing the timeless essence of wabi-sabi. This transformation carries an indescribable depth of beauty.
As the structure harmonizes with its surroundings, blending seamlessly into the landscape, it fosters a natural sense of attachment, exuding a unique and captivating charm.
