The first glass window was probably a small pressed disk made from molten sand that was used as a novelty around 3000 B.C. Using a single pane of glass as a window came much later when there were better methods of making the glass less brittle. A crude form of window started in a mosaic form where the small panes were held in place by lead strips. This also was the beginning of the stained glass era, stunning displays and pictures that adorned the cathedrals and churches of the day.

Glass Becomes Flat

In wasn't until the industrial revolution that glass panes became a staple in most modern homes of the time. In 1827, the invention of a pressing machine for making glass panes paved the way for the mass production of window glass. As the automation process became more sophisticated the average worker was able to afford a few panes of glass for the home.

Heat Loss Protection

The quest for heat retention made possible the invention of the double-paned window now it's rare to see single-paned windows except on vintage homes of the last century. With argon-filling and special coating on the panes that ether keep in heat or keep out UV rays they keep a home energy efficient which is important in these "green" times. Of course unless they are installed properly windows can't do their job effectively so that's why care should be taken in this regard.

During the past twenty years triple-pane glass has become the gold standard for windows. These not only have three panes of glass but two of the sides of glass are coated with a low-e (emissive) layer and the spaces filled with a heavy argon gas to prevent air convection in between the panes. Slowing down and stopping the air currents prevents the warmth from creeping out through the glass by conduction.

Types of Windows

Nothing sets off a home like the choice of windows and doors. Because the framing is now made from fiberglass and vinyl materials they both can be constructed in almost an shape and size. The old-style "picture windows" are still in vogue but they are heavy and expensive. In most places where large windowed areas are required the space is filled with two or three smaller panes.

1. Double-Hung Window: This is the classic window in which both the lower sash and lower the upper one can be raised and lowered. Single-hung windows only have the lower sash that opens.
   
2. Casement Window: This style is hinged on one side (left or right) and the window swings out from the casement when you turn a crank. This style is easy to clean and, if broken, the window easily removed and replaced.
   
3. Slider: This window harkens back to the first moveable windows. It's actually like the double hung only sideways.
   
4. Awning Window: With hinges at the top of the casement it can tilt out of the jam at the bottom. There is an adjustable railing in most models that can hold the window at any angle up to 90 degrees.
   
5. Hopper Window: This is the opposite of the awning window. The hinge is on the bottom.
   
6. Bay Window: There are three windows made from a central sash and two side sashes angled inward to form the classic "bay" design. Used extensively in Victorian homes it is meant to give a room with more light, view and – in some cases – better cooling. The angled sides are often casements which open or double-hung windows.
   
7. Bow Window: This takes the bay window a step further by adding two more windows to the angle. This makes for a gentle curving or "bow." One or more casements can be double-hung.
   

"Hanging" windows is no job for the novice. Mistakes can be costly due to wrong measurements or accidentally breakage. Installing a window can see an inexperienced worker or homeowner falter under an unfamiliar load and fall.

So go to Renovation Experts and get some free quotes on window installation.