1  The opening sash is too small

The result is poor ventilation, neither energy-efficient nor livable;The problem that the window opens fan is too small is relatively easy to solve, each kind of design specification has the requirement of the minimum of ventilated opening area of the residence.

A bedroom about 12 square meters, with a 600mm×1000mm opening sash can meet the ventilation requirements;A living room about 20 square meters, there are two 600mm×1000mm open sash can be satisfied;4㎡ bright toilet, have a 600mm×600mm open sash is enough;The ventilated requirement of the kitchen is a few taller, the kitchen of 5 ~ 6㎡ or so, have a 600mm×1000mm to open sash also can satisfy.

Note: the construction department of some cities issued the local code applicable to this area, such as shenzhen, nanning and other cities stipulated that the open area of doors and Windows should not be less than 8% of the room area, etc., the engineering design in these cities should pay attention to comply with these code.

2 The opening sash is too big

As a result, it is inconvenient to open, and may even affect the safety of opening and closing Windows.

The open sash of open window: width should not be bigger than 700, less than 500, appropriate is 600 or so;Height should not be greater than 1400, less than 900, should be 1000-1200;Use too large opening sash (too wide or too high), especially when opening, you must carefully consider the convenience and safety of opening.

When we focus on the problem of Windows being too big, we often focus on the width, but height can also be deadly.For general external plane window, in the case of a certain windowsill height, the higher the window sash, the higher the position of the opening handle will be, and in the process of "arm extension → bending" this window opening action, the height that the human hand can achieve is to present a downward trend.

So, window sash is too high, handle is too high, can increase the inconvenience of operation.Average height 1.6 ~ 1.7m, the height of arm flat extension is about 1.4 ~ 1.5m, according to the ordinary windowsill 0.9m high, 1.0 ~ 1.2m is the reasonable height of the opening sash.

There is also a problem that is often ignored in the window: now widely used broken bridge aluminum alloy profile, sharp Angle, if the inside of the window, the window sash along the edge of the Angle from the height of about 0.9m to 1.1m, will be in the window side of the activity of 3 ~ 5 years old children's safety form a threat -- bump.

The method that avoids is no other than two kinds: use casement window outwared  or turn &tilt window , but former is unfavorable in tall medium adopt, latter can raise cost.Therefore, this humanized design must be combined with the positioning of the project. In some high-end middle and high-rise residential projects, the use of open interior inverted Windows can enhance the value of products from the perspective of humanized design.

Conclusion: residential doors and Windows is a seemingly simple product, but because of the largest audience and the most long-term use closely related, so every detail needs to be seriously considered.