To balance the sound insulation and thermal insulation of glass curtain walls, the following aspects can be considered:

1. Glass selection

- Choose multi-layer composite glass, such as hollow laminated Low-E glass. This glass can provide good sound insulation and good thermal insulation due to the hollow layer and Low-E coating.

- Adjust the thickness of the glass and the width of the spacer. Thicker glass and a spacer of appropriate width can help improve both sound insulation and thermal insulation.

2. Sealing treatment

- Use high-quality sealing strips to ensure good sealing of the curtain wall. Sealing can not only reduce the spread of sound, but also prevent heat loss.

- Optimize the sealing structure, increase the number of sealing paths, and improve the overall sealing performance.

3. Frame design

- Choose frame materials with good thermal insulation performance such as thermally insulated aluminum to reduce the conduction of heat through the frame.

- Reasonably design the structure of the frame to reduce the possibility of sound transmission through the frame.

4. Auxiliary measures

- Add heat insulation and sound insulation materials between the curtain wall and the main structure of the building, such as thermal insulation cotton, sound insulation felt, etc.

- Install sunshade facilities, which can not only reduce the heat brought by solar radiation in summer, but also block external sounds to a certain extent.

5. Overall design planning

- According to the climate conditions of the area where the building is located, the noise level of the surrounding environment and the use function of the building, the needs of sound insulation and heat preservation are comprehensively considered to carry out reasonable curtain wall design.

- Through simulation analysis and experimental testing, the performance of different design schemes in terms of sound insulation and heat preservation can be evaluated, and the best scheme can be selected.

For example, when designing the glass curtain wall of an office building built in a cold and noisy area, three-layer hollow laminated Low-E glass and a broken bridge aluminum frame are selected, and high-quality thermal insulation cotton and sealant are filled at the joint between the frame and the wall, and external sunshade blinds are used at the same time, so that while achieving better heat preservation performance, it can also effectively block external noise.