2016 New diy magnetic insect window screen/ aluminum window screen/ diy window curtain

Window screen

• A window screen, insect screen or bug screen is a metal wire, fiberglass, or other synthetic fiber mesh, stretched in a frame of wood or metal, designed to cover the opening of an open window. Its primary purpose is to keep leaves, debris, insects, birds, and other animals from entering a building or a screened structure such as a porch, while permitting fresh air-flow. 

• The most window screen common materials used for insect screening material are aluminum and fiberglass. 

1. Aluminum is generally available in natural aluminum or in an applied black or charcoal color, which make the screen much less visible.
2. Fiberglass is available in light gray as well as charcoal colors, the charcoal again offering better viewing and appearance. 
3. For applications requiring greater strength, such as screened doors, nylon and polyester window screen are also available.
4. Fiberglass is less expensive, and has the advantage of not "denting" when hit or pushed, but it is somewhat more opaque than aluminum. For this reason, dark aluminum allows a better view of windows from the exterior, detracting less than fiberglass from the architectural effect of traditional divided-light window styles.

•  Screen sizes

1. Fiberglass screen material is typically available in 100 foot rolls in varying widths, from 18 inches to 120 inches wide.
2. Aluminum window screen material is available in 100 foot rolls except the range of available widths is less than for the more commonly used fiberglass. 
3. The fineness of a screen mesh is measured in wires per inch on the warp (length) and the weft or filler (width). An 18×14 mesh has become standard; 16×16 was formerly common and other common sizes are 18×18 and 20×20.