What is the point of screens on windows?

15 Apr.,2024

 

You’re likely focused on keeping your home’s windows sparkling clean and in great shape—but what about your window screens? 

Window screens allow you to invite refreshing breezes into your home during the summer months while keeping pests outside. However, these screens also provide dozens of other lesser-known benefits. 

Discover why keeping your window screens well-maintained is crucial for experiencing the benefits they offer and extending their lifespan.

Valuable Benefits of Maintaining Your Window Screens

Curb Appeal

Keeping your screens clean is a great (and easy!) way to boost your home’s curb appeal. Clean screens and windows will help your home look neat, tidy, and nicely put-together to guests, neighbors, and future buyers. 

Plus, when it comes time to sell your home, clean screens add to your home’s overall beauty and can make a great impression on potential buyers. If you maintain your windows screens, buyers can be confident you’ve taken the time to keep up with the rest of your home too!

Fresh Circulation

Would you keep dust-infested air filters in your home without changing them every few months? Of course not! Similarly, dirty window screens can’t filter air as efficiently as clean screens. When your screens are clean, fresh breezes can enter your home, but when your screens are dirty, they carry dust, allergens, mold, and mildew into your house with them.

It’s essential to keep your screens clean, especially if your family has asthma or allergies, to maintain a pollutant-free environment in your home.

Heat Transfer

Certain types of screens are designed to provide extra shade for your home during the sunniest points of the day. Even though your double-pane and triple-pane windows will do the brunt of the work, these screens can help reduce heat transfer and keep your home cooler. 

However, more importantly, regularly cleaning your screens will allow you to inspect them for damage, like holes or tears, which will most significantly (and rapidly) reduce their efficiency.

Storm Damage

Screens can deter water from collecting on your windowsills, so they’ll keep moisture damage at bay during summer rainstorms.

Additionally, screens provide an extra layer of protection during storms. If debris collides with your window, your screen will likely take the brunt of the damage, so the rest of your window system will stay in great shape.

Dirt Deterrent

Screens provide a barrier between your windows and the elements, so they can prevent your windows from collecting dust, dirt, and grime—but only when your screens are clean. If they are dirty, your windows will get splattered with grimy water during the next storm.

Pest Control

Windows screens are perhaps most beloved for their ability to keep pests, like mosquitoes, flies, and other insects, outside while your windows are open. 

However, when your screens aren’t well maintained, they’re more likely to develop holes or tears that offer attractive entry for pests. Bigger holes can even provide an entryway for rodents, like mice or squirrels, which can wreak havoc in your home. It’s easy to see why it’s essential to keep your screens in great shape to protect your home from pest damage.

Better Views

While it may go without saying, it’s much nicer to look out a clean window than a dirty one.

If you’d like to enjoy unobstructed views from inside your home, you should keep your screens (and windows!) sparkling clean.

How to Maintain Your Window Screens

Fortunately, it’s not difficult to keep your window screens in great shape—all you need to do is wash them twice a year. You can use a damp cloth to wipe the screen and the frame, and if the screens have accumulated a considerable amount of dirt, you can remove the grime with a stiff-bristled brush.

Despite your best efforts, your screens will begin to deteriorate after 10 to 15 years. Damaged screens can become brittle from sun exposure, and they may even develop holes, tears, or rips from pests or weather. Once you notice these signs of damage, it’s usually time to replace your windows screens.

Enjoy a Fresh Perspective with New Windows and Window Screens

Perhaps your screens are due for a replacement, or your windows are outdated and deteriorating, and you’d like to boost your home’s curb appeal.

If so, Kelly Window & Door can help. We offer dozens of brands, styles, and options for your windows, so you can find the perfect match for your home. Learn more about the window services we offer to homeowners across the greater Cary & Raleigh area!

Cover for the opening of a window

Window with insect screen

A window screen (also known as insect screen, bug screen, fly screen, flywire, wire mesh, or window net) is designed to cover the opening of a window. It is usually a mesh made of metal, fibreglass, plastic wire, or other pieces of plastic and stretched in a frame of wood or metal. 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.

Most houses in Australia, the United States and Canada and other parts of the world have screens on windows to prevent entry of flying insects such as mosquitoes, flies and wasps. In some regions such as the northern United States and Canada, screens were required to be replaced by glass storm windows in the winter, but now combination storm and screen windows are available, which allow glass and screen panels to slide up and down.

For screens installed on aluminium frames, the material is cut slightly larger than the frame, then laid over it, and a flexible vinyl cord, called a spline, is pressed over the screen into a groove (spline channel) in the frame. The excess screen is then trimmed close to the spline with a sharp utility knife. Common spline sizes range from 3.6 mm (0.140 in) to 4.8 mm (0.190 in), in increments of 0.25 mm (0.010 in).

The spline is often manufactured with parallel ridges running along the length of the spline to provide a better grip and compression when it is pressed into the spline channel. A spline roller — a special tool that consists of a metal (or plastic) wheel on a handle — is used to press the spline into the frame. The wheel edge is concave, to help it hold the spline and not slip off to the side. Some spline rollers are double-ended and have both convex and concave rollers; the convex roller can be used to seat the spline deeper into the channel without risk of cutting the screen. Driving the spline into the channel tends to tension the screen on the frame, so the installer must avoid pre-tensioning the screen excessively to prevent the frame from becoming warped.

History

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"Wove wire for window screens" are referenced in the American Farmer in 1823. Advertisement for wire window screens also appeared in Boyd's Blue Book in 1836. Two wire window screens were exhibited at Quincy Hall in Boston in 1839.

In 1861 Gilbert, Bennett and Company was manufacturing wire mesh sieves for food processing. 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." from entering the passenger compartment. By 1874, E.T. Barnum Company of Detroit, Michigan advertised screens that were sold by the square foot.[1]

Window screens designed specifically to prevent insect entry were not patented in the United States, although by 1900 several patents were awarded for particular innovations related to window screen design. By the 1950s, parasitic diseases were largely eradicated in the United States in part due to the widespread use of window screens.[2] Today many houses in Australia, the United States and Canada have screens on operable windows.[3]

Uses

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A window screen prevents insects flying or crawling into a house without obstructing the view or airflow through the window. It is not generally intended to prevent young children from falling out of the window, stop home intruders, or defend against larger animals.

Collecting water

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Screen mesh may collect condensation. This effect has been used to collect water from fog.[4]

Decoration

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Screen painting is a folk art consisting of paintings on window screens. It is also possible to print images directly onto fiberglass screen cloth using specially designed inkjet printers.

Fabric types

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The most common materials used for the mesh of window screens are aluminum and fiberglass. Aluminum is generally available in natural aluminum or in an applied black or charcoal color, which make the screening less visible. Fiberglass is available in light gray as well as charcoal colors, the charcoal again offering better viewing and appearance. 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.

For applications requiring greater strength, such as screened doors (which have a larger area than windows), nylon and polyester screening is often used. However, these materials are not generally used for smaller applications such as window screens.[5]

Bronze insect screening is much more expensive, but gives much longer service than either aluminum or fiberglass. When first installed, it has a bright gold color; this weathers to an unobtrusive dark charcoal within a year or less. Weathered bronze darkens the external appearance of windows to approximately the same degree as charcoal or black aluminum. Bronze is somewhat more resistant to denting than aluminum. Less common screen fabrics include copper, brass, stainless steel, and galvanized steel. For coastal locations, corrosion resistance usually requires the use of bronze or synthetic screening fabric.

Some manufacturers offer screening that promise to substantially reduce the visibility of the screening. Several manufacturers offer screens that roll into a pocket when not in use. These are available for casement windows as well as other types of window and door openings.

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. Screen replacement kits usually consist of a roll of nylon screening fabric and a generous supply of rubber spline.

In addition to insect screening, denser screen types that also reduce sunlight and heat gain are available. These offer significant potential energy savings in hot climates.[citation needed] Other manufacturers offer screens designed to filter for pollen and dust.

Temporary, removable screens that fit within window tracks of double-hung windows are a common expedient widely available in hardware and home improvement stores. Typically 30 to 76 centimetres (12 to 30 in) high, these screens are wedged beneath the lower sash of a double-hung window and secured laterally by the tracks of the window. A sliding mechanism allows the screen to be adjusted laterally to fit the width of most windows, which also allows the screen to fit securely within the tracks below the open sash.

Screen sizes

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Typically, metal screen frames (roll form) are 6.4 mm (1⁄4 in), 7.9 mm (5⁄16 in), 9.5 mm (3⁄8 in) or 11 mm (7⁄16 in) in thickness by 19 mm (3⁄4 in) and 25 mm (1 in). The most common sizes are 7.9 mm (5⁄16 in) and 11 mm (7⁄16 in) by 19 mm (3⁄4 in). The 6.4 mm (1⁄4 in) and 7.9 mm (5⁄16 in) sizes are generally used for single hung windows, while the two larger sizes are used for double hung windows. As 9.5 mm (3⁄8 in) is not a common size, the 7.9 mm (5⁄16 in) thickness may be used instead and shimmed as needed. They come in a variety of colors including unpainted, white, bronze, tan, black, desert sand, etc. The screen may also include a crossbar for added strength.

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. Aluminum screen material is available in 30 m (100 ft) rolls except the range of available widths is less than for the more commonly used fiberglass. 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. For comparison, a typical screen in a clothes dryer has a nylon 23x23 mesh screen.

Fiberglass solar screens provide over 75% of UV protection, by using thicker strands and a closer mesh than regular 18x14 fiberglass window screening. There is some reduction in visibility, but this can be advantageous, since solar screens are difficult to see through from the outside, while easier to see through from the inside.

Finer meshes have been developed to prevent very small insects, often called "noseeums" from flying through. The finer mesh screens are also used to prevent pollens and allergens from entering homes in order to control allergic reactions.

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See also

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Notes

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What is the point of screens on windows?

Window screen