Tinted glass windows for house

Window film

Heat rejection films are normally applied to the interior of flat glass windows to reduce the amount of infrared, visible light, and ultraviolet (UV) radiation entering windows. Such films are usually dyed or metalized (which can be transparent to visible light) to convert incoming solar radiation to infrared radiation, which is then rejected back through the glass to the exterior. Modern window film technology has created ceramic window films which are non-metallic and do not contain dyes that can result in discoloration. The ceramic and metallic window films usually cost 10–15 percent more than regular window film but can reduce energy transmission by as much as 80 percent. Ceramic window films cost slightly more but provide a substantial increase in blocking UV rays and ability to control heat transfer.

To keep the sun's heat out of the house, a low-emissivity coating should be applied to the outside pane of glazed windows. If the windows are designed to provide heat energy in the winter and keep heat inside the house (typical of cold climates), the low-emissivity coating should be applied to the inside pane of glazed windows. Such films also reduce the amount of visible and ultraviolet radiation entering a window, and are often applied to reduce fading of the contents of a room. Silvered film may also be employed to the same end. Spectrally selective films act by blocking certain wavelengths of the sun's infrared radiation and reject heat without reducing natural light.

Security films are applied to glass so when the glass is broken it holds together, preventing dangerous shards from flying about, or to make it more difficult for an intruder to gain entry. Typically applied to commercial glass, these films are made of heavy-gauge plastic and are intended to maintain the integrity of glass when subject to heavy impact. The most robust security films are capable of preventing fragmentation and the production of hazardous glass shards from forces such as bomb blasts. Some companies have even experimented with bullet ballistics and multiple layers of security film. Another key application for security window films (safety window films) is on large areas of "flat glass" such as storefront windows, sliding glass doors, and larger windows that are prone to hurricane damage. These security films, if applied properly, can also provide protection for vehicles. These security films are often tinted and can be up to 400 micrometers (µm) thick, compared to less than 50 µm for ordinary tint films. If anchored correctly, they can also provide protection for architectural glazing in the event of an explosion. A layer of film (of 100 µm thickness or greater) can prevent the ejection of spall when a projectile impacts on its surface, which otherwise creates small dagger-like shards of glass that can cause injury.

Switchable films can be switched from opaque to clear by a safe voltage under 36V AC. In its opaque state, it can be perfectly used as a projection screen that is viewable from both sides. 3G switchable film also has UV (100%) and IR (94%) blocking functions and security function.

Graphic design films are generally colored vinyl or frosted. Frosted finish films closely resemble sandblasted or acid-etched glass, while vinyl films are available in a range of colors. Both types of films are commonly used in commercial applications.

Privacy films reduce visibility through the glass. Privacy film for flat-glass commercial and residential applications may be silvered, offering an unimpeded view from the low-light side but virtually no view from the high-light side. It may also be frosted, rendering the window translucent but not transparent. Privacy films for automobiles are available in gradients of darkness, with the darker tints commonly known as "limo tint."

Correctly applied mirror film can create one-way mirrors. Note that in order to be effective the light differential must be from 6 to 10 times greater to maintain the intended performance. For example, the buildings in a city, during the daytime are difficult to see into, at night however, they can be seen in with ease and if a light is on in the interior space it is easily seen along with the contents.

Other benefits include protection for passengers in the rear of automobiles, protection from UV rays (which have some harmful effects), cooling for pets, greater privacy, reduced chance of theft (because valuables are less visible), reduced glare and reflection on liquid crystal display (LCD) screens, and protection for those who have conditions involving photosensitivity or skin sensitivity, such as lupus (SLE). Window film is also considered more effective and practical than stick-on blinds.

UV filtering to reduce fading[edit]

Protection from UV light can be accomplished by film that addresses only the UV spectrum. As UV is one of the main sources of fading, it can prolong the life of fixtures and fittings. Basic colorless clear films reject (absorbs) some UV radiation up to 380 nm, and depending on the manufacturer, UV inhibitors are added to the polyester, with specialist films offering protection to 400 nm. Tinted filmes are necessary for protection to 500 nm.

Window films filter out over 99% of UV rays to 380 nm, reducing the main factor in fading. However, additional factors such as solar heat, visible light, humidity, and presence or absence of chemical vapors also contribute to fading. Therefore, the greatest protection from fading is offered by tinted or metallised window films that reject large levels of heat and visible light, in addition to UV.

Selection of window film[edit]

Not all films are suitable for all glass. The absorptance of the glass and the film, the size of the pane, the thickness of the glass, the construction of the window should be considered in terms of single pane, insulated glass, treated (with a low-emissivity coating), laminated or toughened.


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Greenwald's Glass Cleaner Refill Pack, for Windows, Shower Doors, Windshields, Mirrors, Squeegee Cleaning - Pre-measured Liquid Concentrate Tablets Make Six 32 Ounce Spray Bottles
Health and Beauty (Greenwald Brands)
  • Made In The USA. Commercial Cleaning Power Without The Price. Removes The Toughest Hard Water Stains
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Generic Premium Decorative Self-adhesive Window Film for Bathroom Bedroom Office Privacy Glass Window Cling with Squeegee (78.7x17.7inch, Purple Flower)
Home (Shenzhen Jinjiaxun Technology Co.,Ltd)
  • Privacy Glass Film: Works as your best privacy guard to prevent any purposed sight from outside
  • Still Enjoy Sunshine Window Film: Not only pretect your privacy,but also allow light into your house office
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Fish Window Cleaning Fish Window Cleaning Foaming Glass Cleaner 3-Pack
Health and Beauty (Fish Window Cleaning)
  • All-Weather, Ammonia-Free, Drip-Free, Safe for Tinted Glass, Foaming Cleaning Action
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Greenbrier International Halloween Ghost Bat Pumpkin Haunted House Sticker Window Gel Clings - 3 Pack Set - Contains 51 Pieces
Home (Greenbrier International)
  • Halloween Ghost Bat Pumpkin Haunted House Sticker Window Gel Clings are good for any clean, dry, smooth, flat, temperate and non-tinted glass surfaces.
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The Black Box Tint Black Box SunJoy Solar Control Home Window Tint Daytime Privacy 36 in x 16 ft
Home (The Black Box Tint)
  • Increase in daytime privacy. Adding daytime security. Glare reduction.
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  • avatar Plain or Tinted glass for house windows- advantages and disadvantages? | Yahoo Answers
    • We are experts in window film applications which will provide daytime privacy. The physics of tinted glass or window films is exactly the same..so:
      It isn't the tint that creates the mirror effect it's the metals in the glass coating or inter-layer or the film that reflect light and heat. In the daylight hours thyere would be privacy . At night the opposite unless you shine lighting diirectly at the glass from the exterior.
      There are tinted films that have zero metals (ceramic films) like Huper Optik that can reduce the reflectivity of glass while rejecting heat, etc . These films and…