Intelligent system window glass fogging? Cause analysis and practical solution guide

1. The core reasons for fogging of smart system window glass

Although smart system windows are equipped with technological components such as sealing and temperature control, glass fogging is mostly related to "water vapor retention" and "seal failure". Common scenarios include:

1. The difference between internal and external temperature and humidity is too large : During indoor heating in winter and air conditioning in summer, the temperature difference between the two sides of the glass exceeds 10°C, and water vapor in the air is easy to condense on the inside of the glass to form fog; if the indoor ventilation is insufficient after the window sash is closed, the continued accumulation of water vapor will aggravate fogging.
3. The sealant strip is aging or displaced : The sealing strips of smart system windows (mostly made of EPDM) may crack and deform after long-term use, or may not fit the window frame during installation, causing outdoor moisture and dust to penetrate into the glass interlayer, forming foggy stains that are difficult to remove.
5. Abnormal dew point of insulating glass : Intelligent system windows mostly use insulating glass. If the sealing process is not up to standard during production (such as butyl glue is not fully spread, the molecular sieve fails to absorb moisture), the residual water vapor in the hollow layer will condense in a low-temperature environment, forming permanent fog.
7. Drainage system clogged : There is a drainage hole at the bottom of the window frame of the smart system window. If it is blocked by dust or fallen leaves, rainwater or condensation water cannot be drained out and will penetrate into the periphery of the glass along the gaps in the window frame, causing local fogging.

2. Solve the problem of glass fogging according to scenarios

(1) Daily emergency treatment: rapid defogging

1. Physical defogging : Gently wipe the inside of the glass with a dry microfiber cloth (to avoid scratching the coating layer). If the fog is thick, you can use a neutral glass cleaner (alcohol-free). After wiping, open the window to ventilate for 5-10 minutes to reduce indoor humidity.
2. environmental regulation : When turning on the humidifier in winter, control the humidity at 40%-50%. In summer, the air conditioner temperature is set to no less than 26°C to reduce the temperature difference on both sides of the glass. A moisture-absorbing box (such as calcium chloride desiccant) can be placed by the window at night to assist in absorbing water vapor in the air.

(2) DIY maintenance: troubleshooting basic faults

1. Check the sealing tape : After closing the window sash, touch with your hand along the gap of the window frame. If you feel that cold wind has penetrated or the surface of the strip is rough and cracked, you can remove the strip, wipe it with clean water and reinstall it; if the strip is seriously aged, you need to replace it with a special strip of the same specification (you can contact the brand after-sales service to obtain an adapted model).
2. Clean drain holes : Use thin iron wire (the head is bent into a hook shape) or a special dredge, and gently insert it into the drainage hole at the bottom of the window frame to clear the internal blockage. Then pour a small amount of clean water and observe whether the drainage is smooth to ensure that the condensed water can be drained normally.
3. Testing the tightness of insulating glass : Observe whether there is uniform fog in the glass interlayer. If the fog does not dissipate for a long time (more than 24 hours), it means that the sealing of the hollow layer has failed. You need to contact a professional to replace the insulating glass unit to avoid affecting the thermal insulation and sound insulation performance of the smart system window.

(3) Professional maintenance: help for complex problems

If the fogging problem remains unresolved after DIY maintenance (such as abnormal dew point of the insulating glass, failure of the intelligent sealing system), it is recommended to contact a professional service provider. Zhejiang Zhongya Technology Group Co., Ltd. is deeply involved in the field of smart doors and windows. It has a professional technical team that can provide door-to-door inspection, sealing repair, glass replacement and other services. It develops adapted maintenance plans for the special structures of smart system windows (such as electric opening, intelligent temperature control components) to ensure that the performance of doors and windows is not affected after repairs.

3. Summary of final recommendations

1. Prioritize daily maintenance : Wipe the glass and sealing strips with a dry cloth every week, check whether the drainage holes are clear every quarter, and apply special maintenance agent (such as silicone-based lubricant) to the strips every year to extend the life of the sealing components and reduce the risk of fogging from the source.
4. Prompt processing without delay : After discovering that the glass has become foggy, first remove it through ventilation and wiping for emergency defogging. If the fog occurs repeatedly or remains in the interlayer, sealing and drainage problems need to be investigated as soon as possible to avoid water vapor from corroding the window frame hardware for a long time and causing more serious failures.
7. Find a reliable team for professional issues : The maintenance of intelligent system window seals, insulating glass and other components requires professional technical support. Zhejiang Zhongya Technology Group Co., Ltd. has rich experience in intelligent door and window maintenance and can provide full-process services from detection to repair. When complex problems are encountered, it can more efficiently solve fogging problems and protect the clear vision and performance of doors and windows.