The Five Common Types of Windows
Double-hung
Double-hung windows are common in most residential construction. The upper and lower sash glide past one another, allowing both the top and bottom to be opened independently. Single hung windows, which are less common, are when only the top or bottom opens. However, because of the functioning of the window, only half can be open at any time. Some double hungs are difficult to clean, but other models allow each sash to fold inward for easy cleaning.
Casement
Casement windows open from the side with a window crank. Because they open to the outside, they can catch the wind and direct them inside. Of course, this asset can also be a hazard if it is particularly rainy in your area. Casements are also very easy to clean because both sides are easily accessible from the interior of the home.
Awning
Awning windows are similar to casements but they open from the bottom up rather than from the side. They are the only type that can be opened during a rain storm; water cascades off of them while keeping the opening free from rain. For this reason, they are a popular choice in the tropics, where air conditioning is uncommon and it rains often.
Fixed
Fixed windows cannot be opened, but they are very inexpensive and an easy way to add light to a room. These are often used as decorative pieces above other types of windows, such as awning or casements. Fixed windows cover large areas, but are unable to be opened, such are common in office buildings. They are very difficult to clean without the help of a window service or a ladder.
Bays and Bows
Bays and bows extend outwards from the exterior facade of a home. They can create extra storage in a room, ranging from a built in seat to a sunny shelf for plants. Most bays and bows combine two types of windows; fixed for smaller glass pieces, with larger pieces being casement, double hung, or awning windows.
Bays and bows can be a great way to add a traditional touch to your home. If your facade is lacks ornamentation and is rather plan, adding a bay or bow can create a more polished appearance for your home. If your home is modern in style, there are also bays that will compliment your facade.