Sun control window film

Types of Sun Control Window Film

Sun control window film is a thin film that sticks to the glass surface of buildings, homes, and automobiles. It controls the sunlight that enters through windows. Sun control films come in a variety of styles. Here are some of them:

• Reflective Films

  These films are metallic and have a mirror-like finish on one side. The mirror-like finish reflects sunlight and reduces glare. They are good in areas with a lot of direct sunlight. However, they may not be ideal for places with changing weather because they may block the view outside.

• Dyed Films

  They are made of several layers of dyed polyester. The dye absorbs the sun's rays, making the interior less bright. They also help to maintain the color of furniture and carpets by blocking the sun's UV rays. Dyed films, however, do not have any reflective properties. They are not effective in reducing heat that much compared to other types of films.

• Metalized Films

  These films combine dyed and reflective film technologies. They have a metal layer that reflects some sunlight and a layer of dye that absorbs the sun's rays. Metalized films are ideal for people looking for a combination of glare reduction and some level of visibility.

• Low-Emissivity (Low-E) Films

  These films have a special coating that reflects heat. They are mostly used in colder climates to retain heat inside the building. In hot climates, Low-E films can reduce the amount of heat entering a building through the windows.

• Ceramic Films

  They are made of tiny particles of ceramic. They are quite effective in blocking heat without affecting visibility. They also have good scratch-resistant properties.

• Hybrid Films

  These films combine different technologies to maximize the benefits of each type. For example, a hybrid film may have both Low-E and ceramic properties.

• Color Stable Films

  These films are designed to maintain their color over time, even when exposed to sunlight. They are made without using dye in the film's adhesive layer. This means that the film will not fade, and the adhesive will continue to hold the film on the glass for a long time.

Specifications and Maintenance of Sun Control Window Film

Manufacturers provide specifications of window films to help buyers understand the functionalities and applications of different types of films. Here are some common specifications:

• VLT: Visible Light Transmission is the percentage of visible light the film allows to pass through the glass. A film with 80% VLT means it allows 80% of visible light to pass through, while 20% is transmitted.
• UV rejection: This is the percentage of ultraviolet radiation the film can block. A film with a UV rejection of 99% can block 99% of ultraviolet radiation from the sun.
• Solar heat gain co-efficient: SHGC is the amount of solar heat the film allows to pass through the glass. A film with a lower SHGC can reduce heating in a building caused by the sun.
• IR rejection: Infrared rejection is the percentage of infrared radiation the film can block. A film with 50% IR rejection can block 50% of infrared radiation from the sun.
• Thickness: Sun control window films come in different thicknesses, measured in mils (one-thousandth of an inch). A thicker film is more durable and can provide more security than a thinner film.

Window films require regular maintenance to sustain their appearance and performance. Here are some useful maintenance tips:

• Perform regular inspections to identify any damages, such as peeling or bubbling.
• Use a soft-bristle brush or a microfiber cloth to remove dirt or dust from the surface of the film.
• Use a pH-neutral cleaning solution to clean the surface of the film. Avoid using abrasive cleaners or tools that can scratch the film.
• Do not use sharp objects to clean the film, as they can cause tears and cuts.
• Keep pets away from newly installed window films for the recommended period. Pets can scratch the film with their claws.
• Follow the manufacturer's instructions for any specific cleaning or maintenance requirements.

How to Choose Sun Control Window Film

Choosing the right sun control window film for specific needs requires careful consideration of several factors:

• Type of Film

  There are different films for different needs. For example, solar films are ideal for reducing heat and glare, while privacy films offer seclusion and reduced sun exposure.

• Visible Light Transmission (VLT)

  VLT is the percentage of visible light the film allows through the windows. A film with high VLT allows more light inside but offers less glare and UV protection. In contrast, low VLT films provide more UV protection but can make indoor spaces darker.

• The Solar Heat Gain Coefficient (SHGC)

  SHGC measures how much solar heat a window film permits through. A low SHGC film reduces the amount of heat entering a space, making it ideal for hot climates or buildings with extensive south or west-facing windows.

• Glare Reduction

  Consider the glare levels in the area. Glare-reducing films are especially useful in places with direct sunlight, such as offices with computer screens.

• UV Protection

  Choose films that block 99% of UV rays to safeguard flooring, furniture, and artwork from fading.

• Energy Efficiency

  Opt for films that can contribute to a building's overall energy efficiency by lowering heating and cooling expenses.

• Daylight Transmission

  Daylight transmission is the ability of window film to allow natural light to enter a building. Films with high daylight transmission maximize natural light, creating bright interiors. Conversely, films with low daylight transmission reduce brightness but may be necessary for glare or heat sensitivity.

• Interior Aesthetics

  Consider the film's appearance and how it will affect the building's interior. Some films are transparent, while others have a reflective or tinted finish.

• Exterior Appearance

  Some films significantly alter a building's exterior appearance. Depending on the film's reflectivity and tint, it can make a structure look darker or change its color.

• Durability and Warranty

  Look for high-quality films with a long warranty period. This indicates durability and performance consistency. Consider the film's material. Some films are more resistant to scratches and fading than others.

• Climate

  Consider the climate in the area. Films specifically designed for hot climates to block heat and glare may be more beneficial in regions with extreme sun exposure. In contrast, regions with mild or moderate climates may require films that balance heat gain and natural light.

• Legal Regulations

  Check local laws and regulations regarding window tinting. Some areas have restrictions on tint levels or reflectivity.

• Professional vs. DIY Installation

  Decide whether to install the film professionally or as a DIY project. Some films are easier to install than others, while some require professional expertise for proper application and alignment.

How to DIY and Replace Sun Control Window Film

Most sun control films are easy to install, and there are several ways to apply them. Here are the steps for applying window film using the spray-on method:

• Ensure the window is clean and free of debris.
• Prepare the film according to the manufacturer's instructions.
• Spray the window with the solution. Ensure the window is sufficiently wet to allow the film to adhere.
• Apply the film to the window. Smooth it out with a squeegee or a soft cloth to remove any air bubbles.
• Trim any excess film around the edges of the window.
• Wipe off any excess solution that has leaked out around the edges of the film.
• Allow the film to dry completely before closing the window or operating it.

For the peel-and-stick method, follow these steps:

• Clean the window surface thoroughly to ensure proper adhesion.
• Cut the film to fit the window, leaving a slight overlap around the edges.
• Peel off the backing paper from the film.
• Align the film with the window and press it onto the surface, starting from one side and working your way across to prevent air bubbles.
• Use a squeegee or a plastic spatula to smooth the film and remove any air bubbles or wrinkles.
• Trim the excess film along the edges using a sharp utility knife.
• Inspect the installation for any imperfections and make necessary adjustments.

Q and A

Q1: Can sun control films be installed on all types of windows?

A1: Sun control films can be installed on most windows, but some specialized glass types, such as self-cleaning or certain coated low-E glasses, may not be compatible. It's always best to consult with a professional before installation.

Q2: How long does sun control window film last?

A2: The lifespan of sun control window film can vary depending on the type of film used, the quality of the installation, and environmental conditions. Generally, high-quality films can last anywhere from 5 to 15 years.

Q3: Will window films make interiors dark?

A3: No, modern sun control window films are designed to allow visible light to pass through while reducing glare and heat from infrared rays. There are even films that enhance interior brightness while providing sun control.

Q4: Can sun control films reduce UV damage to artworks and furnishings?

A4: Yes, sun control films can significantly reduce UV exposure, thereby protecting artworks, furnishings, and flooring from fading and deterioration caused by ultraviolet radiation.

Q5: Does window film installation require maintenance?

A5: While window films require minimal maintenance, some actions are necessary to ensure their effectiveness and appearance. These include regular cleaning with mild soap and water and avoiding abrasive materials that could damage the film.