2023年5月31日水曜日

5/31 発寒の家Ⅲ

 

捻じれていた二階の梁(105×270L:3640)を素早く架け替え、根太受けと梁成補強のために45×105を両側からサンドイッチした「発寒の家Ⅲ」です。屋根断熱は最近お気に入りのミラフォームΛ・・EPSでありながらフェノールフォームに迫る性能とコストパフォーマンスが魅力で最近よく使います。基礎断熱に土と接して使える汎用性の高さも魅力。屋根にはこのラムダを200mm(約GW340mm相当)を使います。ちなみに屋根は構造体の外側で断熱する外張り断熱。従いまして今見えている梁等の構造材は全て室内側に存在することになります。こうすることで、いつでも点検が容易になります。
The second floor beam (105 x 270L: 3640) which had been twisted was quickly replaced, and 45 x 105 was sandwiched from both sides to support the joists and strengthen the beam. My recent favorite for roof insulation is Mirafoam Λ...I've been using EPS a lot lately because it has performance and cost performance that rivals phenol foam. It is also attractive for its versatility, as it can be used in contact with soil for basic insulation. For the roof, use this lambda of 200mm (equivalent to approximately GW340mm). By the way, the roof is externally insulated, which is insulated on the outside of the structure. Therefore, all the structural materials such as beams that are visible now are on the indoor side. This makes inspection easier at any time.
梁を架け替え根太受けと補強を兼ねて両側より45×105で挟みました。
The beam was replaced and sandwiched between 45 x 105 pieces from both sides to support the joists and reinforce it.

梁と柱の接合は全て羽子板ボルトやパネリードXを用いて補強します。
All joints between beams and columns are reinforced using battledore bolts and panel lead X.

コストパフォーマンスとどこにでも使い易い性格が気に入って最近よく使うミラフォームラムダ。写真は100mm厚です。
I've been using Miraform Lambda a lot lately because I like its cost performance and ease of use anywhere. The photo is 100mm thick.

当時の羽子板ボルト(Z金物)今にして思えばガタモ大きいですし、ボルトもスプリングワッシャを使っていなかったりで、手で回ります。
In retrospect, the battledore bolts (Z hardware) of those days were quite large, and the bolts did not use spring washers, so they had to be turned by hand.

やっと手に入るようになった構造用パネルOSB9mm(3×10版)
Structural panel OSB9mm (3×10 version) finally available

屋根には1層目の断熱材を敷き詰めて、ブルーシートを掛けて雨養生。
The first layer of insulation was laid on the roof, and a blue sheet was placed over it to protect it from rain.

なぜ・・和室の長押や廻り縁はこんな風に大きく欠くんでしょう・・柱断面が乏しいものはこの際思い切って交換します。
Why are the long edges and edges of the Japanese-style room so badly damaged? I will take the plunge and replace the pillars with poor cross-sections at this time.


5/30 発寒の家Ⅲ

 屋根から取り掛かった「発寒の家Ⅲ」屋根は構造体の外側に外張り断熱。なので防湿シートは梁の外気側。壁は充填を主体に付加断熱を外張りするので防湿シートは柱の室内側。切り替え部分のシートの仕込みが完了。

雨の多い季節を見越して屋根断熱はGWではなくてボード状断熱材を選択しました。丁寧に小屋梁のレベルを取り直し大垂木下には矢を打って天端のレベルはキッチリ。今後2階梁の交換やクリープの矯正なんかもあるので現場にはジャッキを用意。補強に使う羽子板ボルトはカナイならメルト、カネシンならレスビー。

好みなんです/笑

Starting with the roof, the roof of ``Cold House III'' is insulated on the outside of the structure. Therefore, the moisture-proof sheet is on the outside air side of the beam. The walls are mainly filled with additional insulation, so the moisture-proof sheet is on the indoor side of the pillars. Preparation of the sheet for the switching part is complete.

In anticipation of the rainy season, we chose board-type insulation material for the roof insulation rather than Golden Ware. We carefully re-leveled the roof beams and shot arrows under the large rafters to ensure the top level was perfect. In the future, we will need to replace the second floor beam and correct creep, so we have a jack on site. The battledore bolts used for reinforcement are Melt for Kanai and Lesby for Kaneshin.

I like it/lol

この上から厚物合板を敷いて防湿シートを折り返します。
Lay thick plywood over this and fold back the moisture-proof sheet.

垂木の高さも矢(関西)又はパッキン(北海道)を打ってしっかりレベルを合わせます。
Adjust the height of the rafters to the correct level by hitting arrows (Kansai) or gaskets (Hokkaido).

矢又はパッキンはこんな感じです。
The arrow or gasket looks like this.

新築だとまず使わないジャッキ。柱梁の交換やクリープした床の矯正等々・・リフォームには大活躍します。
A jack that is rarely used in new construction. It is very useful for renovations such as replacing columns and beams, straightening creeping floors, etc.
こちらがお好みの羽子板ボルト。頭が小さいのが好みです。
This is your favorite battledore bolt. I like the small head.

納まったところもピタッときれいです!
The place where it fits is also very clean!