Thinking of skylights?

Ceiling Window - Tips for You to Choose

Ceiling Window - Tips for You to Choose

There are many advantages of installing skylights. They give space and light to a dark upper floor. The windows do not affect the look of the house in others, and are a fairly cheap investment to raise the value of the house. However, it is important to get windows that hold the wall. A window to sit on the ceiling and give light to an upstairs must be of good quality. Any ordinary window does not work, but it needs to be a custom-designed skylight. The roof window should handle the stresses and pressures that the window is exposed to, like rain and snow.


A skylight must keep tight against the liquid. The cover plate surrounding the skylight will ensure that the joints that get through the roof window do not give rise to leakage. It is important to make sure that the cover plate is adapted to the type of roof on the house. A flat roof requires a different type of sheet metal than the house with a wavy ceiling.

The glass

Most modern skylights are manufactured in low-emission glass, ie double or triple glass windows with gas-filled seals. They are durable for printing, practical and easy to clean, but actually have a limited durability. When the seal for some reason no longer holds the gas, moisture and dirt can easily penetrate into the glass, which must then be replaced. The glass in a skylight should be stable enough to hold pressure from snow and also from someone who climbs it.


The U-value of the window determines the window's heat resistance. The lower a u value, the more isolated the window will be. This, in turn, causes lower energy costs when the cold race disappears. It also reduces the condensation risk inside the glass. An u value of 1.3 W / m2K is considered a standard window for new production. Windows with lower u values ​​are slightly more expensive than standard, but when energy costs decrease, this money is quickly saved on the lower power costs.

Ceiling windows or not

Ceiling windows can be fixed or openable. The fixed windows have the advantage of giving more light insulation to their size and tend to withstand moisture and condensation longer than openable skylights. On the other hand, many can not afford to be able to vent and air the room, and it is clearly more difficult to put a window that is not openable.

The roof windows that are openable are side hung or more hanged for functionality. The windows have locking function and are reversible for ease of tipping. The skylights tend to be dirty so they must be easy to keep clean. The disadvantage of opening windows is that the frame is wider so they do not emit as much light as a long window. There is also a higher risk of water damage with an opening window.

Feel free to look at the opening features on the roof window. There are stepless options and skylights that can be opened in weather modes that minimize the risk of damage to rain.

Size and design

To lighten in lightly, it is advisable to expect the glass size in a room to be at least 10% of the floor area, please more. Windows 780 * 1800 mm or larger may in some cases be considered emergency exits, which may be useful. Large individual windows, however, are quickly expensive, so installing several smaller side or above each other can be rewarding.

The design of a skylight is largely about taste. The window's design is also a pleasure to match the style of the house. The lower edge of the window needs to be designed so that water flows easily from the glass. There must be no water collection there as it causes water damage to the frame and house.

Keep in mind

When you buy skylights, it's good to watch sunshades at the same time. They are the necessary accessories when the sun is on most. There may be a building permit for the installation of skylights, so check with the municipality before installing them.

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