Aluminium Profiles Structures Affect Windows’Air-tightness

September 19, 2023

Building energy consumption stands as a significant portion of overall energy usage. 

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Building energy consumption stands as a significant portion of overall energy usage. Over recent years, advancements in science, the emergence of new technologies and materials, and a growing emphasis on energy conservation in both civil and industrial sectors have highlighted the importance of air-tightness, particularly in aluminum window frame extrusion, as a key aspect of building energy efficiency.

Air-tightness refers to the ability to prevent air infiltration when windows are closed. It is categorized into eight different levels, with higher levels indicating superior air-tightness and greater energy savings.

Aluminum windows and doors serve as the primary barrier to ensure residents' safety. Substandard air-tightness can allow pollutants such as PM2.5 to easily enter indoor spaces through gaps. The level of air-tightness directly influences indoor air quality and exposure to PM2.5 particles. Higher levels of air-tightness correspond to better indoor air quality. Alternatively, installing a fresh air ventilator can help enhance indoor air conditions.

As living standards rise, there is an increasing demand for a comfortable indoor environment, necessitating the use of air conditioners in summer and radiators in winter as essential amenities. The air-tightness of windows and doors significantly impacts the comfort level of inhabitants by affecting heat transfer and loss. Higher levels of air-tightness result in reduced heat transfer and loss, thereby affecting energy consumption in both winter and summer.

Several factors influence the air-tightness of aluminum windows and doors, including the material and structure of the profiles, assembly techniques such as sealing leaks, brushes, and rubber strips.

Insufficient air-tightness can lead to issues such as condensation, mold growth, and poor sound insulation. Moreover, it can facilitate the leakage of heat and toxic gases during fire incidents. Premium-quality windows and doors utilize durable profiles and high-quality rubber strips, coupled with meticulous assembly, to effectively insulate against external elements such as dirt, smoke, gases, and noise.

As integral components of buildings, the air-tightness of windows and doors significantly contributes to energy savings. Beyond enhancing heat insulation, damp-proofing, noise-proofing, and fireproofing, they also play a crucial role in shielding occupants from harmful gases and substances while maintaining proper ventilation.

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