What's the difference between casement windows and bay windows?

The difference lies in different meanings and different advantages and disadvantages.

Brief introduction of casement window:

Large opening area, good ventilation, good sealing, excellent sound insulation, heat preservation and impermeability. The disadvantage is that the window width is small and the field of vision is not wide. It is divided into two types: internal opening and external opening. The inner opening is convenient for cleaning windows, and the outer opening does not take up space. The outer window occupies the space outside the wall and is easy to be damaged when it is windy; The inner window takes up some indoor space, so it is not convenient to use the screen window. It is also inconvenient to use screens and curtains when opening windows. If the quality is not up to standard, it may leak rain. Casement windows are widely used in commercial and residential buildings, office buildings, high-grade houses and villas in cities.

Six requirements for accessories selection of double casement windows;

There are single-opening transverse doors and double-opening transverse doors; A single door means only one glass window, while a double door has two glass windows. Horizontal doors are divided into one-way opening and two-way opening. One-way opening means that it can only be opened in one direction (only pushed in or pulled out). Bidirectional opening means that the door leaf can be opened in two directions.

In order to avoid unnecessary mistakes when friends choose accessories for casement windows, the selection requirements of six square-inch doors and windows are put forward for friends' reference.

(1) When choosing hardware fittings, try to choose products with guaranteed quality. The quality grade of hardware fittings should be consistent with doors and windows, and the structure and shape of hardware fittings should be consistent with profiles, with beautiful colors, correct functions, flexible operation and convenient installation.

(2) The installation of hardware fittings shall be complete, standardized, reliable and accurate. After the doors and windows are installed, they are beautiful in appearance, flexible and convenient to open, and must not be deformed, blocked or collided.

(3) The exposed fasteners of hardware fittings shall be made of stainless steel.

(4) When flat doors and windows and large sliding doors and windows are closed, multiple locking points should be adopted, otherwise the air tightness will be greatly reduced under the action of negative pressure difference. Considering the convenience of operation, it is best to use multiple locking points to hold hands or actuators.

(5) The length of sliding support for casement window is generally 2/3 of the width of sash, such as 1/2 when sash is light, and the length of sliding support for hanging window is generally 1/2 of sash.

(6) When opening windows in typhoon areas and high-rise buildings, it is recommended to install window sashes with sliding supports instead of hinges.

Brief introduction of bay window:

Windows protruding from the outer wall are used for lighting and beautifying the room. Bay window, as its name implies, is a kind of floating window. Generally, bay windows can be rectangular or trapezoidal, protruding from indoor to outdoor. The bay window is equipped with glass on three sides, and the height of the windowsill is lower than that of ordinary windows. This design is not only conducive to large-scale glass lighting, but also retains a spacious window sill, so that the indoor space can be visually extended.

Precautions:

Some people like to call bay windows "bay windows" because they are generally rectangular or trapezoidal and protrude outward. A bay window is different from a traditional flat window in that it has only one side of glass, and it is equipped with glass on three sides. The height of the windowsill is also relatively low, and the low windowsill makes people's horizons wider and feel closer to nature. Of course, although the bay window has so many advantages, there are still many places to pay attention to in use. First of all, we suggest that the material of the window sill should be able to protect against the sun. In addition, experts advise children's rooms not to open bay windows, mainly for safety reasons, because the window sill is low and easy for children to climb.

Nowadays, some houses, whether bedrooms, study rooms, living rooms or facing east, west, north and south, have many bay windows, which are euphemistically called "expanding indoor use space" and "broadening viewing sight", and some even boast a large viewing angle of 180 degrees. But this should be adapted to local conditions, local conditions, not mechanically. If it is in the south, or facing a good scenery, setting bay windows in the bedroom, study or living room can really have a pleasing effect. But if it is in the north, or the surrounding environment is not open, the bay window will not only be ineffective but also counterproductive. Low windowsill bay windows, especially multi-storey and high-rise residential buildings, should pay more attention to the safety of use. The national standard "Code for Residential Design" clearly stipulates that protective measures should be taken when the outer window sill is less than 0.9 meters away from the indoor floor.

There is a problem:

(1) heat preservation problem:

The larger the bay window area is, the worse it is for winter insulation; Too much solar radiation in summer will increase the power consumption of air conditioners. Therefore, when setting the bay window, we must ensure the thermal insulation performance of the bay window, otherwise it will not only waste energy, but also cause problems such as condensation, dripping and mildew, which will affect the normal use of the room. In winter, the temperature difference between indoor and outdoor is large, and the bay window is more prone to condensation. In cold areas and rooms facing north in hot summer and cold winter areas, bay windows are also prone to condensation in winter. Therefore, from the perspective of energy saving, the housing should not be installed with bay windows. The size of the window should not only meet the daylighting rate, but also give consideration to heat preservation and energy saving. Generally, the area ratio between the living room and the window is one-seventh to one-sixth, which can meet the lighting needs.

(2) Security issues:

In recent years, newly-built commercial houses all like to design room windows as convex windows, and owners also like this kind of window with bright lighting and increased space. However, compared with the traditional window design, the convex window has potential safety hazards because of its low windowsill. 20 10 On June 27th, this hidden danger reappeared in Hangtianyun Garden 12 building. Xiao Ting (a pseudonym), a sixth-grade girl, accidentally fell from the bay window of 10 building while playing with her classmates, leaving her loving father, mother and grandmother forever.