1. The contradiction between getting hot in winter and heat insulation in summer. my country has a vast territory. In the cold winter, the higher the solar transmittance of the outer windows, the more outdoor heat can be collected; but in the hot summer, in order to maintain the

1. The contradiction between getting hot in winter and being insulated in summer

my country has a vast territory. In the cold winter, the higher the solar energy transmittance rate of the exterior window, the more outdoor heat can be collected; but in the hot summer, in order to maintain the indoor cool as much as possible, it is also hoped that the exterior windows will be as low as possible.

Solution

Architectural integrated sunshade windows are products that integrate sunshade products with doors and windows. Sunshading products are divided into external sunshade, intermediate sunshade and internal sunshade according to their location. According to the type of sunshade product, they are divided into built-in sunshade hollow glass, hard roller blinds, soft roller blinds, awning , venetian blinds and others.

Built-in louver hollow glass is a product that installs sunshade devices in the hollow glass. The built-in louver is adjusted by the control device outside the hollow glass to achieve the purpose of heat insulation in summer and insulation in winter.

2. The contradiction between heat insulation and natural lighting in summer

If sunshade measures are used to achieve heat insulation in summer, the transmission of visible light will be greatly reduced, thereby affecting the natural lighting of the outer window; and not using such measures will affect the heat insulation effect.

Solution

Moderately adjusts the adjustable external sunshade based on the intensity of solar radiation and indoor lighting requirements.

Dimming integrated windows can achieve the purpose of natural lighting in the deep room by changing light, mainly including louver dimming integrated windows, film dimming integrated windows, color-changing glass dimming integrated windows, etc.

The integrated louver dimming window plays a role in sunshade, while reasonably adjusting the angle of the sunshade louvers, and guiding natural light into the room.

3. The contradiction between high airtightness of doors and windows and indoor ventilation

From the perspective of thermal comfort, the higher the airtightness of doors and windows, the better, but in China, where the four seasons are clear, the higher the airtightness of external windows, the better. Therefore, the enclosed indoor space must be ventilated to ensure that the carbon dioxide content is not too high and that the indoor air meets people's metabolic activities.

Solution

adopts fresh air system or natural ventilation. In buildings with very high requirements for air tightness, air circulation is achieved through a fresh air system; in buildings with not very strict requirements for air tightness, a certain amount of natural ventilation can only be sacrificed for a certain amount of comfort.

Passive ultra-low energy consumption green buildings adopt high-efficiency fresh air-heat recovery technology to minimize building heating and cooling needs, and make full use of renewable energy to provide buildings with basic requirements for comfortable indoor environments with less energy consumption.

4. The contradiction between sound insulation performance of doors and windows and ventilation

In order to have a quiet indoor environment and ensure indoor comfort, the sound insulation performance of doors and windows is very important, but this also forms a contradictory relationship with the ventilation performance of doors and windows.

Solution

uses natural ventilators or ventilation sound insulation windows to ensure high sound insulation performance under the conditions of ventilation as much as possible.

Ventilation and sound insulation window is a window that not only meets the ventilation function but also needs to block sound propagation and reduce noise.

First, the window sealing, glass and frame structural transformation, such as using vacuum glass , high-quality sealing strips and frames; second, the air inlet and air outlet are staggered, such as "double-layer window staggered opening" can reduce the noise of 8~10dB compared to directly opening outdoors, and there are cases of vents staggeredly opening up and down inside and outside the window frame.

The second type is to ventilate sound insulation through window sound insulation ventilators. This type of sound insulation ventilator uses S-type channels to effectively absorb harmful noise and some dust, allowing fresh air to enter the room and reduce noise.

As people's requirements for indoor comfort are getting higher and higher, good indoor comfort is an inevitable trend in the development of my country's architecture. Only by understanding the impact of various performances of doors and windows on the indoor environment can we balance the relationship between them, so as to achieve the best energy-saving effect and indoor comfort.