Is the sound insulation effect of Northeast Building good?
The effect is good. The structure of houses in the northeast does have a certain sound insulation effect. We should look for houses with good sound insulation. There are many old-fashioned houses. The walls of teachers' houses are thick, and the materials used are practical, especially in the northeast and alpine regions, which have very good thermal insulation and sound insulation performance. Buildings in Northeast China are insulated by insulation boards on the outside of walls. The insulation layer is about 20 cm thick, which has a good insulation effect. In recent years, every old residential area in Northeast China has been rebuilt, and the building is insulated with insulation boards. Whether it is a new building or an old building, it will not be cold.