What do you mean by shoveling mountains?

Bashan refers to the edge position of the house. Generally, houses are rectangular, and the narrow places on both sides directly face the house outside is the mountain. Because the room in the mountain is in direct contact with the outside, it is colder inside in winter. The popular saying is that the house is not warm. Now the windows of the house are getting bigger and bigger, and many of them are directly a wall. The bigger the window is, the more light will be gained, but correspondingly, the more heat will be dissipated. You can stick a glass insulation film on the glass, and the operation is very simple.

There is also the aging damage of the window sealing strip. Replacing them can prevent cold air from coming in and prevent temperature loss.