The sound insulation effect of iron rolling gate is not good. If you want to sound insulation in the iron rolling gate, I suggest you make a thick quilt-like thing with canvas (wear-resistant, good load-bearing), just like the warm door curtain used in winter in the north, with a larger size and cover all the walls around the rolling gate. It's best to nail the upper frame, the left frame and the right frame on the wall, with gaps overlapping in the middle, which is convenient for entry and exit, like radiators used in northern winter.

Expanding knowledge: the rolling gate is a kind of multi-section movable door pieces connected in series, and the upper and lower doors rotate around the scroll above the door with a fixed slide. Suitable for commercial facades, garages, shopping malls, hospitals, factories and mines and other public places or houses. Especially in the place where the door opening is large and it is not convenient to install the ground door body, it plays a convenient and quick opening role. Such as garage doors, shopping mall fire shutter doors, airplane garage doors, etc.