Window screen

It serves to keep leaves, debris, bugs, birds, and other animals from entering a building or a screened structure such as a porch, without blocking fresh air-flow.

An employee realized that the wire cloth could be painted gray and sold as window screens and the product became an immediate success.

On July 7, 1868, Bayley and McCluskey filed a U.S. Patent, number 79541 for screened roof-top rail-car windows, allowing ventilation, while preventing "sparks, cinders, dust, etc."

Barnum Company of Detroit, Michigan advertised screens that were sold by the square foot.

By the 1950s, parasitic diseases were largely eradicated in the United States in part due to the widespread use of window screens.

It is not generally intended to prevent young children from falling out of the window, stop home intruders, or defend against larger animals.

It is also possible to print images directly onto fiberglass screen cloth using specially designed inkjet printers.

Weathered bronze darkens the external appearance of windows to approximately the same degree as charcoal or black aluminum.

Do-it-yourself screen and frame replacement kits are widely available at hardware and home improvement stores.

One kind is composed of straight aluminum sides (which can be cut to size) and plastic corner inserts.

They come in a variety of colors including unpainted, white, bronze, tan, black, desert sand, etc.

Fiberglass screen material is typically available in 30 m (100 ft) rolls in varying widths, from 46 to 305 cm (18 to 120 in) wide.

The fineness of a screen mesh is measured in wires per inch on the warp (length) and the weft or filler (width).

The finer mesh screens are also used to prevent pollens and allergens from entering homes in order to control allergic reactions.