The last difficulty "noise". Double sashes and a new life: 40-year-old man buys a 50-year-old house (3)

The property I chose as my new home was in a noisy environment in front of the station and along the main road, and was built more than 50 years ago. Therefore, what I had planned before moving in was to apply soundproofing measures to the sashes.

New home after handover. A view of the dining room and office from the bathroom. Although it has been fully renovated, only the sash is still old.

In general, the sash and window glass of a condominium correspond to the same "common area" as the outer wall and stairs of the condominium. If you try to renovate such as replacement, you will need the agreement of the management association (according to the detailed regulations), and it will develop into a discussion about whether or not to refurbish all the units and what to do about the cost, which is a fairly high hurdle. Even though this property was sold after being fully renovated, only the sashes remained old. On the other hand, I confirmed in advance that it was a "private part" (the part purchased by the owner) from the wooden frame inside the sash.

Therefore, as a noise countermeasure, we decided to make all five windows double sashes (double sashes, inner windows), and when the preview was over, we prepared on the premise that they would be double sashes. proceeded.

The reason why we chose all five is that for soundproofing purposes, we don't want to create "gap" where sound can enter, that is, we don't create weak points. This is because the realization of a "quiet space" as a whole is greatly impaired.

One of the five windows is the bedroom, a separate room that is not adjacent to the work or dining room. However, in the sense of a good night's sleep, soundproofing measures must be taken here as well. The remaining four windows are two in the workroom, one in the dining room, and one next to the sink in the bathroom. Since these three rooms are all connected as one space when the sliding door is opened, there was a concern that if the double sash was omitted even in one as mentioned above, it would become a weak point in terms of soundproofing.

A small window in the bathroom. Although it is made of aluminum, it is old. There is no sponge or rubber packing in the part where the door hits, where moisture, sound, and insects come in, whether it was originally missing or deteriorated and came off, just metal hitting each other. All the windows in the property were the same

In addition to being able to install double sashes without modifying the common areas, there are many benefits such as high heat insulation performance as well as sound insulation performance, which leads to energy saving of air conditioners. Some people point out that it is troublesome to clean, but unlike exterior windows, it is not exposed to the elements, so the outdoor side is less likely to get dirty, and there are relatively few opportunities to clean it. The exterior windows of the author's property are all opaque glass, so dirt is not easily noticeable in the first place.

In addition, the double sash greatly reduces the sound leaking from inside the room to the outside. Double sashes are sometimes used in soundproof apartments where you can play musical instruments. Until now, in wooden apartments, the sound output from the speakers was very limited, and if you wanted to hear it clearly, you would use headphones, but it seems that the environment will finally be able to produce normal sound through the speakers (in terms of the corner room on the top floor) is also large).