本日は旭川で建設中の「神楽岡の家Ⅱ」の気密測定です。測定前に外壁貫通部のチェックを手分けして行い、送風機で室内の空気を吸い出して(減圧法)漏気がないかを確認します。
Today we will be measuring the airtightness of Kaguraoka no Ie II, which is currently under construction in Asahikawa. Before measurement, we check the penetrations of the exterior wall separately, and use a blower to suck out the indoor air (decompression method) to check for air leaks.
外部の貫通部分はガスケットとテープでしっかり気密を行います。
The external penetration part is tightly sealed with gasket and tape.
室内からもブチルテープを用いて丁寧に気密化します。
We will carefully make the room airtight using butyl tape.
外壁貫通部分はなにも管だけではありません。羽子板ボルトの部分もブチルテープを用いて一つ一つ丁寧に気密化します。菅野棟梁の丁寧な仕事です。8年前に初めて「東光の家」を施工いただいた時も同様の仕事を見て感動したのを覚えています。
The parts that penetrate the exterior wall are not just pipes. The battledore bolts are also carefully made airtight one by one using butyl tape. This is the careful work of master carpenter Kanno. I remember being impressed when I saw similar work done eight years ago when I had my first ``Toko House'' constructed.
結構な数の羽子板ボルトがありますから中々たいへんな仕事です。
There are quite a number of battledore bolts, so it's quite a difficult job.
こちらは気密コンセントBOX廻り。ポイントは防湿シートとコンセントBOXのつなぎ目にウレタン充填してあるところ。こうすることで外壁部分のスイッチやコンセント廻りからの漏気がぐっと抑えられます。この処置が甘いと特に冬場、コンセント廻りから冷気を感じたりします。
This is around the airtight outlet box. The key point is that the joint between the moisture-proof sheet and the outlet box is filled with urethane. This will greatly reduce air leakage from around switches and outlets on the outside wall. If this treatment is not done properly, you may feel cold air coming from around the electrical outlet, especially in the winter.
測定は気密が良過ぎてエラー(機械が漏気を感知できない状態)が頻発し何度も計測してやっと測れるほどの高気密状態でした。
The airtightness of the measurements was so high that errors (the machine could not detect air leaks) occurred frequently, and it took many measurements to finally be able to measure the airtightness.
計測器はコーナー札幌製。
The measuring instrument is made by Corner Sapporo.
1階の西側の窓で計測しました。
Measurements were taken from the west window on the first floor.
測定結果はC値:0.2cm2/㎡と最高の結果となりました。
The measurement result was the highest C value: 0.2cm2/㎡.
今日はHSCCでCHICのカバーなんていかがでしょう
How about covering CHIC at HSCC today?