Sound insulating qualities

In terms of noise insulation, the National Indoor Stadium uses a 25-cm, nine-layer multi-functional design composed of cement planks, glass fiber, a waterproof layer, and sound-insulating materials, topped off with a sound-insulating outer coating.

The Low-E glass curtain wall is made of double-layer glass, which not only provides heat insulation but also reduces noise. And the air conditioning equipment is specially designed to contain noise.

According to chief project engineer Zhang Guoqiang, the National Indoor Stadium will serve as a top-grade artistic performance venue after the Games, so acoustics and sound insulation are important considerations.

This multi-layer design will solve the problem faced by many of the Olympic venues -- that of noise from falling rain, he added.

Steel roof truss of the National Indoor Stadium
Taking full advantage of renewable energy resources

The stadium takes full advantage of renewable energy resources through a water pump heating system, fresh air ventilation, and natural lighting.

In addition, the public area of the stadium uses water-permeable material to allow rainwater to seep into the ground. And rainwater collected on the rooftop will also be reused.

    [1]       [2]       [3]