窗户这样正常吗？有懂行的帮我看看
- 主题发起人 遛弯的虫子
- 开始时间
对! 热空气贴上冷玻璃/冷窗框，沒能力使得冷玻璃/冷窗框的温度提高. 且在窗户表面被冷窗户降温成了冷空气. 从而造成凝露.
上策: 加一层塑料薄膜
中策: 加强窗户表面的空气流通
下策: 降低湿度; 大幅提高房间内温度以提高窗户表面温度
下下策，换窗户
最后编辑:
随便网上找了找，自己看50%在室外-20 - -30度时是不是太高了。还有就是室外温度极低是，室内湿度太大，墙里面也会结露。不怕发霉的尽管加湿。我的builder交房时也是给的这个表。
http://www.glacierglass.com/about/humidity-condensation
http://www.glacierglass.com/about/humidity-condensation
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Recommended Humidity Levels
Medical authorities indicate that the level of humidity indoors should not be below 15%. It is generally acknowledged that the level of humidity in houses with a good vapour barrier should not exceed 40%, or, in older homes without a vapour barrier, 35%. Table 1, below, shows suggested levels of relative humidity for inside the home for varying outside temperatures.
Controlling the Level of Humidity
Control of the level of humidity is aided if humidistats are used to control humidifiers. If the level of humidity becomes excessive the humidifiers should be switched off until the level of humidity is reduced to the correct level.
For normal day-to-day control of the level of relative humidity in the home the following steps should be considered:
- Water vapour is one of the products of combustion with natural gas stoves. Water vapour is also a by-product of cooking. The kitchen fan should be large enough to remove such vapour, or the kitchen door closed and a window opened for ventilation.
- Showers, especially, are a source of water vapour. The bathroom door should be kept closed and the room ventilated, using an exhaust fan, or by opening a window.
- Drying clothes on a line indoors and unvented dryers are sources of water vapour. The washing cycle is another source. When doing the laundry consider opening a window in the laundry room.
- Crawl spaces can be a source of water vapour if they have earthen floors which are not covered by plastic sheeting, or other waterproof membrane.
- Keep all rooms, even if unoccupied, heated to a minimum of 10°C (50°F) as condensation will occur in unheated rooms.
- As a general rule, long periods of background heating, plus topping-up during periods of occupancy, are more likely to prevent condensation than the same amount of heat introduced over a relatively short period.
- Open a window, or windows, for a brief period to ventilate the house each day.
- Leaving the damper open in a fireplace, or lighting a fire, will increase ventilation and assist the rate of air change.
- If you have a hot air furnace, install a direct fresh air intake.
The thickness of the glass has little or no influence on room-side glass temperature. With double and triple-glazing units the width of the air space is an influence as is, in the case ofjjtr\ffifo|iliatart Low-E, the layer of invisible "insulation" that has been added to the glass.
What can affect the performance of a window?
The following may cause condensation to form on a window:
Air Circulation - a window may be in an area in which there is poor circulation of warm air. This means that the temperature of the inside glass surface is colder than in other parts of the home and this may cause condensation to form at humidity levels which are practical for the rest of the home.
Drapes - By drawing heavy drapes over a window, or patio door, the possibility of condensation can be increased because the flow of warm air is restricted.
Interior insulating devices - insulating blinds, shutters, or similar devices, applied to the interior of windows, can contribute to condensation problems when moist indoor air is trapped between the device and the window. The insulating properties of these devices cause the temperature of the glass surface to be lower than normal and the trapped air to condense into moisture.
Varying Humidity Levels - remember that the humidity in some rooms, kitchens and bathrooms in particular, can be higher than in other areas of the home, thus encouraging condensation to form on the windows in these rooms.
Orientation - if windows are exposed to prevailing winds, then they will be slightly colder than the other windows in the home and may cause condensation to form at humidity levels which are practical for the rest of the home.
Exposure - some windwos in the home may be protected by other buildings, trees, etc, which form a windbreak, while other are totally exposed to the wind and, therefore, colder.
To find out more about Humidity In You Homes, visit the Energy Star website at http://oee.nrcan.gc.ca/energystar/english/
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Recommended Humidity Levels
Medical authorities indicate that the level of humidity indoors should not be below 15%. It is generally acknowledged that the level of humidity in houses with a good vapour barrier should not exceed 40%, or, in older homes without a vapour barrier, 35%. Table 1, below, shows suggested levels of relative humidity for inside the home for varying outside temperatures.
浏览附件480966
Controlling the Level of Humidity
Control of the level of humidity is aided if humidistats are used to control humidifiers. If the level of humidity becomes excessive the humidifiers should be switched off until the level of humidity is reduced to the correct level.
For normal day-to-day control of the level of relative humidity in the home the following steps should be considered:
Room-side glass temperatures - the room-side glass temperature plays an important role in occupant comfort in the home. With high room-side glass temperatures there is less likelihood of condensation forming, down-draughts are reduced making sitting nearer the patio door or window more comfortable, and maximum use can be made of floor space.
- Water vapour is one of the products of combustion with natural gas stoves. Water vapour is also a by-product of cooking. The kitchen fan should be large enough to remove such vapour, or the kitchen door closed and a window opened for ventilation.
- Showers, especially, are a source of water vapour. The bathroom door should be kept closed and the room ventilated, using an exhaust fan, or by opening a window.
- Drying clothes on a line indoors and unvented dryers are sources of water vapour. The washing cycle is another source. When doing the laundry consider opening a window in the laundry room.
- Crawl spaces can be a source of water vapour if they have earthen floors which are not covered by plastic sheeting, or other waterproof membrane.
- Keep all rooms, even if unoccupied, heated to a minimum of 10°C (50°F) as condensation will occur in unheated rooms.
- As a general rule, long periods of background heating, plus topping-up during periods of occupancy, are more likely to prevent condensation than the same amount of heat introduced over a relatively short period.
- Open a window, or windows, for a brief period to ventilate the house each day.
- Leaving the damper open in a fireplace, or lighting a fire, will increase ventilation and assist the rate of air change.
- If you have a hot air furnace, install a direct fresh air intake.
The thickness of the glass has little or no influence on room-side glass temperature. With double and triple-glazing units the width of the air space is an influence as is, in the case ofjjtr\ffifo|iliatart Low-E, the layer of invisible "insulation" that has been added to the glass.
浏览附件480967
What can affect the performance of a window?
The following may cause condensation to form on a window:
Air Circulation - a window may be in an area in which there is poor circulation of warm air. This means that the temperature of the inside glass surface is colder than in other parts of the home and this may cause condensation to form at humidity levels which are practical for the rest of the home.
Drapes - By drawing heavy drapes over a window, or patio door, the possibility of condensation can be increased because the flow of warm air is restricted.
Interior insulating devices - insulating blinds, shutters, or similar devices, applied to the interior of windows, can contribute to condensation problems when moist indoor air is trapped between the device and the window. The insulating properties of these devices cause the temperature of the glass surface to be lower than normal and the trapped air to condense into moisture.
Varying Humidity Levels - remember that the humidity in some rooms, kitchens and bathrooms in particular, can be higher than in other areas of the home, thus encouraging condensation to form on the windows in these rooms.
Orientation - if windows are exposed to prevailing winds, then they will be slightly colder than the other windows in the home and may cause condensation to form at humidity levels which are practical for the rest of the home.
Exposure - some windwos in the home may be protected by other buildings, trees, etc, which form a windbreak, while other are totally exposed to the wind and, therefore, colder.
To find out more about Humidity In You Homes, visit the Energy Star website at http://oee.nrcan.gc.ca/energystar/english/
So, mine is Okay.
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- 注册
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- 消息
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- 荣誉分数
- 23,475
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