window films for safety and security
TRANSCRIPT
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Window Films for
Safety and Security
Applications
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Window Films for Safety and Security Applications
The American Institute of Architects
Course No. AEC1456
This program qualifies for 1.0 LU/HSW Hour
Course Expiry Date: 04/08/2023
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Purpose:
Safety and security window films offer protection from a variety of events, from accidents and natural disasters, to break
and entry and bomb blasts. This course examines safety and security window film and attachment systems and
includes discussions on the history of films and film classifications, the functional benefits and applications of window
films and attachment systems, and the relevant testing standards and specifications.
Learning Objectives:
At the end of this program, participants will be able to:
• discuss window film classification and the difference between conventional and microlayered safety film construction
and its effect on window strength
• describe fenestration safety and security risks posed by tempered glass breakage, forced entry, bomb blasts and
industrial explosions, windstorms, and vandalism
• discuss relevant testing standards and how they apply to product specification, and
• use case studies to illustrate how safety and security window films can maintain the building’s aesthetics while
protecting occupants and owners against a variety of external threats.
Purpose and Learning Objectives
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Introduction to Window Films
Safety and Security Window Film and Attachment Systems Benefits
• Safety Glazing (Human Impact)
• Spontaneous Glass Breakage
• Intrusion Protection
• Blast Mitigation
• Windstorm Mitigation
• Antigraffiti
• Film/Frame Attachment Systems
Specifications and FAQs
Applications and Case Studies
Course Summary and Resources
Contents
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Introduction to Window Films
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Window films have been employed in building projects for nearly 50 years to help solve a variety of needs. Originally
developed to reduce solar heat gain from entering through a window, the following timeline highlights the development
of window films and explains how the many functional aspects of films came to market.
In 1966, the original solar control window film patent was granted to a manufacturer. It was a highly reflective, silver
colored window film that is still very popular today. A few short years later, safety and security window film was
developed in response to terrorist bombings in Europe. Since then, there have been a number of significant innovations,
including the most recent releases of metal-free IR rejecting films for both interior, and now exterior, applications. The
window film industry also received global recognition when the National Fenestration Rating Council (NFRC) agreed to
certify window films in 2009. Most recently, light redirecting films were introduced in 2014. These films are designed to
redirect light hitting transom windows so that natural light can be driven deeper into the building, helping to reduce the
need for electrical lighting.
A History of Window Films
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Timeline of Window Films
1966 • original sun control window film patent
1969 • safety/security window films developed in response to terrorist bombings in Europe
1979 • low emissivity (Low-E) films are introduced
1984 • abrasion-resistant coatings for durability
1995 • microlayered tear-resistant security window films
2002 • color-stable film process patented
2003 • low interior reflectivity films introduced
2006 • virtually clear, metal-free IR blocking films
2009 • NFRC certification for window films
2011 • virtually clear, metal-free IR blocking films for outdoor use
2014 • daylight redirecting film introduced
2016 • new low emissivity (Low-E) film with increased insulated performance
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The application of window film can provide solutions to many areas of concern within a building, be it high energy costs,
occupant comfort, fading, safety and security of people and property, and improved building aesthetics. Window films
are a passive system—they function on their own.
Today, window films are classified into the following three categories:
Because windows and glass are everywhere, opportunities for window films to provide solutions are also everywhere: in
commercial applications, retail storefronts, residential homes, and government buildings.
Film Classifications
Safety and Security Films
• Blast and Windstorm Mitigation
• Seismic Glass Breakage Mitigation
• Theft Prevention
• Antigraffiti
Energy (Sun) Control Films
• Building Energy Savings
• Occupant Comfort
• Building Heat Load Reduction
• Fade Protection for Furnishings/Coverings
• Privacy and Aesthetics
Energy / Safety and Security Films
• All Mentioned Benefits Combined
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Advantages of Window Films
Safety and security window films are typically sold to upgrade the performance of
existing windows in existing buildings. Window films are typically significantly
more cost effective than replacing the windows themselves. Not only is the film
itself less expensive than purchasing an entire window, you do not need to
remove an entire window or deal with the safety concerns of a hole in the side of
the building. The disruption to the tenants is less, and you do not need to deal
with eliminating the waste of the old window.
Window films are also used on sites requiring historic preservation. Clear safety
and security window films do not change the look of the windows, yet they can
reject as much as 99.9% of the UV rays, which are the leading cause of fading.
Advantages of Window Films
• Much less expensive than replacing windows
• Installation is much less disruptive to operations and occupants
• No glass or frames sent to landfill
• Rejects up to 99.9% UV rays
• Maintain existing glass (historic preservation)
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How Do Safety and Security Films and Attachments Work?
These films do not stop the glass from breaking; in fact, when the glass
breaks, safety and security films perform their best. Safety and security films
hold the glass in place and add significant penetration resistance once the
glass is broken. You might ask, why does that matter?—the window is broken.
Consider the fact that the glass itself may not be the significant cost factor
here. Suppose a piece of glass breaks on the 20th story of a high-rise building
and falls to the street; that is a significant liability. Or perhaps a storm occurs
and now water and debris are entering through the building shell, destroying
the interior of the building. Or perhaps a thief tries to break in, but rather than
enter through the glass, he is forced to attack the window for minutes trying to
get in.
Safety and security window films and attachments aid in occupant protection,
as well as help to minimize downtime costs.
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Conventional Safety Film Construction
The conventional safety film is a single or double layer
polyester film, with a thick pressure sensitive adhesive on
one side of the film, and a scratch-resistant hardcoat on
the other. These films will perform better as the thickness
increases. The most common thicknesses for conventional
safety films are 7- and 8-mil products. These films can be
as thick as 14 mils. Typically, safety films are applied on
the interior of the glass; however, some manufacturers
have films that can also be applied on the exterior.
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Microlayered Safety and Security Film Construction
You can obtain better performance with less thickness by
utilizing microlayered safety and security films. A
microlayered film differs from conventional films by using
tens of layers of material in the same thickness as one
layer of a conventional film. Microlayered films alternate
between a “stiff” layer and a “gummy” layer, in order to
obtain added performance. The alternating layers not only
add strength to the window but also add tear resistance to
the film, giving that much additional safety and security to
the window.
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Safety and security window films are
typically sold to upgrade the
performance of existing windows in
existing buildings. What are the
advantages of this approach?
REVIEW QUESTION
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• Much less expensive than replacing
windows
• Installation is much less disruptive
to operations and occupants
• No glass or frames sent to landfill
• Rejects up to 99.9% UV rays
• Maintain existing glass (historic
preservation)
ANSWER
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Safety and Security Window Film and
Attachment Systems Benefits
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Benefits
Let’s examine the benefits that safety and security window films and attachments
can provide. Safety and security window films and attachments: can help bring
glass up to safety glazing code; reduce the risk of falling glass from tempered
glass that spontaneously breaks; help to provide enhanced intrusion protection
against thieves and violent criminals; provide added safety against blast
mitigation, both from bombs as well as industrial explosions; help to preserve the
building envelope in the event of a windstorm; and provide a sacrificial layer to
protect against vandals.
Benefits of Window Films
• Safety Glazing (Human Impact)
• Spontaneous Glass Breakage
• Intrusion Protection
• Blast Mitigation
• Windstorm Mitigation
• Antigraffiti
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Safety Glazing: Human Impact
Safety glazing is often thought of as tempered or laminated glass. Tempered
glass is stronger than standard annealed glass, and when it breaks, it shatters
into thousands of tiny cubes (as seen on your car side windows in a crash) as
opposed to large sharp shards.
A piece of glass is considered safety glazing after passing either ANSI Z97.1,
“Standard Safety Glazing Materials Used in Buildings - Safety Performance
Specifications and Methods of Test” or 16 CFR CPSC 1201, “Safety Standard
for Architectural Glazing Materials.” These tests are conducted by dropping a
100-lb. bag into the glass from a distance of 1.5 to 4 feet. Safety glazing is
required by code in certain areas—typically glass doors, sidelites, shower
doors, patio doors, sliding glass doors, balcony glass, glass near stairs, or any
glass within 18" of the floor.
Alternate Channel Mounting Holes.
Main Frame.
Alternate Frame
Base.
Sub-Frame.
Impactor.
1: Impact Test Structure.
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Safety Glazing: Human Impact
Safety and security window films are often used to upgrade existing glass in a
building to safety glazing, to upgrade historic buildings, and buildings where
the glass was incorrectly installed. This is typically far less expensive than
replacing the existing window with safety glass.
Some manufacturers have tested their safety and security window films with
third-party testing agencies to the safety glazing standards. Typically, a
minimum of a 6-mil microlayered film, or an 8-mil conventional film is required
to pass this test. The video shown here is an example of an ANSI Z97.1 test.
Codes may vary by state and county; obtain third-party testing from the film
manufacturer and consult with a local code official.
Click on the image to view the video on YouTube (no audio).
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Spontaneous glass breakage, or SGB, is a phenomenon that occurs only in tempered glass. In order to create
tempered glass, a glass manufacturer will quench the super heated glass in a very quick fashion, which increases the
break strength of the glass. This process has the potential to trap nickel sulfide inclusions within the glass, and over
time, these inclusions may expand, causing the glass to shatter into thousands of tiny pieces.
Some glass manufacturers have additional heat treating processes that can help reduce the risk of spontaneous glass
breakage, but it may still be a risk. When spontaneous glass breakage occurs, there is a risk of all of the glass falling
out of the frame, leaving a hole in the building shell—which poses safety and security risks, such as glass raining down
numerous stories.
Safety Glazing: Spontaneous Glass Breakage
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Safety Glazing: Spontaneous Glass Breakage
Safety window films and attachment systems are used to hold the glass in place after a
spontaneous breakage.
Rather than the glass raining down, or leaving an opening in the side of the building, the glass
stays in the frame:
• helping to increase protection for people, property, and possessions, and
• allowing for time to replace the glass.
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Safety Glazing: Spontaneous Glass Breakage
There are two primary considerations when considering safety window
films and attachment systems for spontaneous glass breakage.
First is that this is a nonimpact situation, meaning nothing has actually
physically struck the glass. This means that a high-performing thick film
is not required.
The second consideration is that the film must be anchored to the frame
to ensure that when the event happens, the glass will stay within the
framing system. Note that a lot of tempered glass is installed on
balconies, or is the exterior pane of a double pane unit. In these cases,
an exterior, weatherable safety film will be required.
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Security Glazing: Intrusion Protection
One of the most common reasons for security film to be installed on a residence
or commercial property is for intrusion protection. Windows and glass doors are
one of the weakest points on the building envelope and are often targeted as an
entry point for criminals. In 2012, over $15 billion was lost due to property
related crimes in the U.S., and unfortunately, fortified glass is often too
expensive when considering security upgrades. Bars on the windows simply
have an aesthetic that many homes and retail outlets are unwilling to utilize.
In addition to theft related crimes, mass shootings have been increasing over
the past few years, and on a number of occasions, the attackers have shot the
glass and walked right through a hole in the side of the building, obtaining
access to the interior in seconds.
2012 U.S. Crime Statistics*
Property Crimes Violent Crimes
Occur every 3.5
seconds
Occur every 26
seconds
Nearly 9 million
occurrences
Over 1.2 million
occurrences
*According to the Uniform Crime Report, “Crime in the United
States,” 2012, completed by the U.S. FBI.
Note: Window films are not bulletproof; they provide intrusion
protection.
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Security Glazing: Intrusion Protection
Security window films and attachments are used to help deter intruders and would-be thieves from entering into a
space. In this video, watch an intruder take two minutes longer to get through a window fortified with a security window
film. This added time is time the intruder is not hurting people, or stealing, and with every passing second, the police
have more time to respond, and the intruder has the opportunity to give up. Please note, window films are not
bulletproof; they provide intrusion protection, helping to give you more time to prepare and helping to keep criminals out.
Click on the image to view
the video on YouTube
(includes audio).
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Safety and Security Glazing: Blast Mitigation
Glass shards are one of the leading causes of fatalities in the event of an explosion. When
an explosion occurs, whether it is from a bomb or a manufacturing plant, an intense shock
wave explodes glass inward, and the glass becomes deadly sharp missiles. The U.S.
government has created a test standard that measures the effectiveness of fortified
windows against blasts: GSA-TS01-2003, “U.S. General Services Administration Standard
Test Method for Glazing and Window Systems Subject to Dynamic Overpressure
Loadings.” ASTM F1642, “Standard Test Method for Glazing and Glazing Systems Subject
to Airblast Loading” is another relevant testing standard.
Most government facilities (government/military/embassy buildings) actually require some
form of blast mitigation on windows, whether they own the space or are leasing it. In many
cases, buildings around government facilities also opt for blast mitigation. Other buildings
that may consider blast mitigation are financial centers, controversial businesses,
international corporations, or manufacturing plants.
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Safety and Security Glazing: Blast Mitigation
Window films can be third-party tested to GSA blast standards. The blast test is
conducted by setting off a bomb near a building structure that contains glass.
The test measures how far into the building space glass shards penetrate. Based
on how far the glass comes into the space, the window will receive a one through
five rating. Most specifications require a minimum of a 3B rating. There are a few
different sized blasts, so when comparing options, make sure to ask what the
pressure and blast impulse was that the 3B rating was achieved under. A few
window film manufacturers have tested their films to this bomb blast standard,
and achieved the required 3B rating.
All films are not created equal, and specifying a thickness is not enough. Be sure
to ask the manufacturer for their blast reports.
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Blast Mitigation: High-Explosive Blast Tests
Here’s an example of the effect of a blast on a window
without window film protection. The test involved a quarter-
inch annealed glass, and a 4-psi peak blast pressure with
28-psi-msec impulse. The result is a GSA security
performance level 5 (low protection, high hazard), or what
may be termed “catastrophic failure.” This gives a clear idea
of the potential hazards with unprotected glass.
Click on the image to view the video on YouTube (no audio).
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Blast Mitigation: High-Explosive Blast Tests
And, here’s the effect of the same level of blast pressure on
an identical sample of glass. In fact, this window was next
to the last one just shown. The window film holds the
shattered glass together even under these extreme
conditions. The window film used is a microlayered safety
film providing a GSA security performance level 3B (high
protection, low hazard). A very impressive improvement!
Click on the image to view the video on YouTube (no audio).
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Safety Glazing: Windstorm Mitigation
Windows are also rated for windstorm mitigation. The windstorm industry standard
tests are ASTM E1886, “Standard Test Method for Performance of Exterior
Windows, Curtain Walls, Doors, and Impact Protective Systems Impacted by
Missile(s) and Exposed to Cyclic Pressure Differentials” and ASTM E1996,
“Standard Specification for Performance of Exterior Windows, Curtain Walls, Doors,
and Impact Protective Systems Impacted by Windborne Debris in Hurricanes.”
Projectiles are shot at the window, and then the window is put through hundreds of
positive and negative pressure cycles, simulating the effect of a windstorm. One of
the biggest issues to deal with after a windstorm is the damage done by the
elements that penetrate the glazing. If the glass can remain in the frame, fewer
elements will be able to penetrate the building shell, helping you to bring the
property back up to operational sooner.
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As well as blast protection, safety and security window films can help provide a measure of increased windstorm
protection against windborne debris and rain damage, and once in place, they are ready 24 hours a day, seven days a
week. FM Global, one of the largest commercial property insurance companies, approves window films from some
manufacturers for windstorm protection.
Safety and security window films can be an effective way of fortifying glazed openings against impact by windborne
debris. Many films have been tested according to the prevailing test standards for impact resistance. Microlayered
safety films have been tested up to 70 pounds per sq. ft. design pressure (or 165-mph winds). A window system must
pass both the missile impact and the pressure cycle tests to be considered for windstorm.
State and local regulations vary; consult with your local building official to determine applicability.
Safety Glazing: Windstorm Mitigation
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Safety Glazing: Windstorm Mitigation
This video shows the response of a glazing system with
safety and security window film when impacted by a
“Medium Large Missile Level C,” which is a 4-foot two-by-
four traveling at 40 feet per second. When considering a
safety and security film for windstorm, an attachment
system is always required.
Click on the image to view the video on YouTube (includes audio).
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Security Glazing: Antigraffiti
An antigraffiti window film is a sacrificial film layer applied over the glass, either on
the interior or the exterior, to reduce expenditures and operating time for replacing
glass. The film can be single layer and be reinstalled after each tagging, or have
as many as six layers, removing one layer after each event.
When a vandal tries to scratch, gouge, acid etch, or tag the glass, they are in fact
tagging a film that can easily be removed and replaced. If the vandalism is
removed sooner rather than later, this often discourages repeat offenses, and it
also preserves the image of the shop or advertisement. Typical areas where
antigraffiti films are used are retail, schools, bathroom stalls and mirrors, banners
and advertisements, mass transportation, and metro transit stops.
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Safety and Security Glazing: Attachment Systems
Safety and security window films hold the glass together in the event
of a break; however, what holds the glass in the frame? The answer
is an attachment system. Attachment systems are designed to
adhere to the film that is applied to the glass as well as to the frame
of the window. These systems are designed to mimic the look of an
existing window gasket, so as not to look aesthetically unacceptable.
There are two main types of attachment systems used today; one is
a structural wet glaze, and the other is a rubber gasket with a very
high bond (VHB) adhesive, often referred to as a profile system.
IPA = Impact Protection Adhesive.
IPA 3/8" min on film—WINDSTORM
IPA 1/2"—for BLAST mitigation
IPA 3/8" does not require the
glazing stop to be trimmed.
IPA 3/8" min on frame (excluding
gasket)—WINDSTORM.
IPA 1/2"—for BLAST mitigation.
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Safety and Security Glazing: Attachment Systems
Attachment systems are recommended for every safety and security window
film installation, as an attachment system will always provide an added level of
security. However, there are frame configurations that are not conducive to an
attachment system, so it is not always possible to use one. In these cases,
adding a safety film alone will certainly still add a measure of safety and
security performance.
Another important point to note is that the adhesive bond between the
attachment system and the frame is critical. It is always recommended to work
with a manufacturer who makes both the film and the attachment system to
ensure a quality bond between the film and the attachment—to ensure the
required safety measures are met.
Safety CategoryRequired/Highly
Recommended
All Tempered Glass X
Spontaneous Glass
BreakageX
Intrusion Protection X
Bomb Blast
MitigationX
Windstorm Mitigation X
Human Impact
Antigraffiti
While attachment systems are recommended
for every application, there are situations
where they are required, or very highly
recommended.
See chart.
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List six benefits of safety and
security window films and
attachments.
REVIEW QUESTION
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• Safety Glazing (Human
Impact)
• Spontaneous Glass Breakage
• Intrusion Protection
• Blast Mitigation
• Windstorm Mitigation
• Antigraffiti
ANSWER
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Attachment systems are
recommended for every
application, but there are situations
where they are required or very
highly recommended. Identify
these situations in the table.
REVIEW QUESTION
Safety CategoryRequired/Highly
Recommended
All Tempered Glass
Spontaneous Glass
Breakage
Intrusion Protection
Bomb Blast Mitigation
Windstorm Mitigation
Human Impact
Antigraffiti
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Attachment systems are
recommended for every
application, but there are situations
where they are required or very
highly recommended. Identify
these situations in the table.
ANSWER
Safety CategoryRequired/Highly
Recommended
All Tempered Glass X
Spontaneous Glass
BreakageX
Intrusion Protection X
Bomb Blast Mitigation X
Windstorm Mitigation X
Human Impact
Antigraffiti
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Specifications and FAQs
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A common practice in the industry is to specify a safety and security film via prescriptive specs, such as a 7-mil film with
a certain tensile strength, and a certain yield strength. However, unless you are specifying an antigraffiti film, this is not
a recommended approach.
The safety and security film performance is highly dependent on how it is manufactured, as well as the adhesive that is
used on the film. Therefore, it is always recommended to specify a safety film based on the relevant third-party testing
that we have discussed thus far. For example, rather than specify a 7-mil safety film and wet glaze attachment for bomb
blast, you should specify a security film and attachment system that has met a 3B rating at a specific blast load. This will
ensure that the manufacturer you are working with has done performance based testing.
Safety and security films are a system, and the interactions between the adhesive, hardcoat, base film, etc. are all
relevant when determining whether the product will perform as required.
Prescriptive vs. Performance Specifications
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Specifying window film with CSI specs is easy. The industry has created easy-to-read and easy-to-understand
specifications that allow you to precisely select all the functional and aesthetic options you require. You can also contact
your preferred manufacturer to obtain base specifications.
For example, in terms of performance, items addressed in a specification will include:
1. Physical/Mechanical Performance Properties
a. Film Color
b. Thickness
c. Tensile Strength (ASTM D882)
d. Break Strength (ASTM D882) (Per Inch Width)
e. Tear Resistance (ASTM D1004)
f. Puncture Propagation Tear (ASTM D2582)
g. Young’s Modulus (ASTM D882)
2. Uniformity
3. Variation in Total Transmission Across the Width
CSI Specifications
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4. Identification: Labeled as to Manufacturer listed in this Section.
5. Solar Performance Properties
a. Visible Light Transmission (ASTM E903)
b. Visible Reflection (ASTM E903)
c. Ultraviolet Transmission (ASTM E903)
d. Solar Heat Gain Coefficient (ASTM E903)
6. Impact Resistance for Safety Glazing
a. Safety Rating (CPSC 16 CFR, Part 1201)
b. Safety Rating (ANSI Z97.1)
7. Windstorm Protection
8. Bomb Blast Mitigation: Independent testing with results from high explosive arena blast testing.
CSI Specifications
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Warranty Information
Proper care and maintenance is important to keep film looking
good and warranties valid. Window film warranties for
commercial and retail applications are usually for ten years or
longer, and for residential, many are limited lifetime warranties or
as long as the warranty holder owns the home. There are many
examples of projects where window films have lasted well over
20 years.
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Care and Maintenance
The care and maintenance of window films is simple. The film may
be washed 30 days after installation with a common window
cleaning solution that contains ammonia, although you should
verify the acceptable cleaning solutions with the manufacturer.
Synthetic sponges or soft cloths are recommended for washing
the film, and a soft squeegee is recommended for removal of
cleaning solution from the film. Never use bristle brushes or
abrasive cleaners or cleaning materials.
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Please note, we have spoken about how safety and security films have been tested in accordance with industry
standards that may relate to building codes in your county or state. Building codes and enforcement vary by county, and
compliance with local codes can only be granted by a local code official.
Window film manufacturers can provide third-party industry standard testing results to the code officials, but the final
approval on compliance will rely on the building code official. Work with your local authorized window film dealer to
obtain the testing data required for your project.
Meeting Code
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Will window films break my windows?
• Millions of square feet of window film are installed every year, and these films have been installed on buildings for
nearly 50 years. Credible manufacturers train and educate their dealers to assess the conditions of a window and
determine applicability of different films. In addition, typically the window film manufacturer will offer a warranty to
cover the existing window. It is important to work with credible manufacturers who are financially able to honor their
warranty.
Will window films make my glass look dark or look purple?
• Purple films are films that have failed, and are typically poorly designed, poor quality window films.
• There are a wide variety of films from clear to dark.
• Credible manufacturers will offer a warranty for color.
How long do window films last?
• Window film warranties can be as long as 15 years, and there are numerous examples of projects lasting well over
20 years.
FAQs
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Are window films bulletproof?
• Window films are not bulletproof. Window films are used to hold the glass in place after a bullet penetrates the
window, thereby helping to slow an intruder from entering the building.
• Window films can be used in conjunction with bulletproof glass as added spall protection.
Where is window film installed on the glass or window?
• Window films are commonly installed on the inside surface of the glass.
• Newer technology films allow for films to also be installed on the exterior, providing more options, better solar
performance, and exterior protection for the glass. When considering exterior applied films, look for films that do not
include metals to ensure that the film does not have a chance to corrode due to precipitation.
I need to replace the glass in the building to meet code. Can I use window films?
• As we have just discussed, safety and security window films and attachment systems may be used to bring your
glazing up to relevant codes. Consult with your local window film dealer and code official before making costly glass
replacements.
FAQs
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Applications and Case Studies
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Retail Applications
Smash and grab crime is everywhere. Retail display windows
advertise merchandise to everyone. Safety and security window films
act as a low-profile deterrent for smash and grabs. A would-be thief
breaks the glass with the expectation of easy access, but the film is
designed to hold the shattered glass together, which can help slow
down entry.
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Commercial Applications
Safety and security films help increase protection from the
dangers of broken glass, which can address important measures
towards life safety, property protection, and/or continuity of
operations.
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Residential Applications
In residential applications, safety and security films
provide enhanced protection for people and
property from windstorms and thieves, reduced
fading of furnishings and wood floors, and improved
interior comfort, all the while maintaining the view.
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Safety and security window films and attachment systems are a common solution to real world problems; however, you
may have never heard of the product before today. The main reason is that most customers who purchase these
security or safety upgrades do not want their measures publicized.
Window film manufacturers have spent millions of dollars testing to numerous safety standards, e.g., bomb blast,
human impact, and windstorm standards, and these films have been used on some of the tallest and most well-known
buildings in the world. We will go through a few case studies that have given approval for their solution to be told.
However, there are thousands if not millions of buildings worldwide that have used safety films for their protection.
Case Studies
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The National Gallery of Canada, just 300 short yards away from a U.S. embassy, received a recommendation by the
Ottawa Carleton Regional Police to implement a comprehensive window protection system, due to the vast quantities of
glass on the building.
The architect, Moshe Safdie, was concerned about maintaining the aesthetic impact of the gallery, and therefore,
shutters or bars were simply out of the question. The solution was to install 125,000 sq. ft. of microlayered safety and
security film and attachment system for bomb blast protection.
National Gallery of Canada: Bomb Blast
Please remember the test password PROTECTION. You will be required to enter it in order to proceed with the online test.
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Jewelry Store Case Study: Intrusion Protection
In Stuart, Florida, safety and security window films were specified after a thief
broke through the glass door and stole $35,000 worth of jewelry. Unfortunately,
the alarm system was not enough to deter the thief. Shutters were considered
by the owner; however, they did not give an “open for business” aesthetic.
The owner of the jewelry store immediately had a microlayered safety film and
attachment system installed on the new glass, and less than a week later, the
store was hit again. Fortunately, this time the criminal was unable to penetrate
the film, and nothing was stolen.
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Chicago Hotel: Spontaneous Glass Breakage
One guest was staying at a luxury hotel in downtown Chicago when the
glass shower door spontaneously broke. Imagine having to walk through a
large quantity of broken glass barefoot in order to get to the phone to call
the front desk to explain what happened.
After this incident, a microlayered safety and security film was installed on
all of the shower doors in the guest rooms, so that even if the glass
shattered, the glass would stay in the frame, and not spill onto the floor.
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School Safety: Intrusion Protection
Tragically, mass shooting events have been increasing at an alarming rate, and
many of these events are happening at schools—nearly 40%. Schools all
across the country are looking at ways to increase their security measures in a
cost effective way, and one of the main areas being considered is how to keep
an intruder out of the building in the first place.
Microlayered security window films and attachment systems are being used in
schools all across the country to help keep the intruders from penetrating
through the glass. This solution has shown it may deter an intruder for as long
as two minutes, giving valuable time for police to arrive, and security measures
to be implemented. Again, window films are not bulletproof: they provide
intrusion protection, helping to give you more time to prepare, and helping to
keep criminals out.
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Virginia Governor’s Mansion: Intrusion Protection
The Virginia Governor’s mansion, built in 1813, is the oldest continuously
occupied executive mansion in the nation. As project managers neared the
completion of a six-month, $7.5-million renovation of the house, they pondered
how best to protect the residence in two ways.
First, they wanted to preserve the priceless antique furnishings and fabrics,
hand-woven carpets, and artwork from the damaging effects of the sun. And
second, they wanted to supplement the mansion’s safety and security system
by making it difficult to break through the building’s glass windows and doors.
John Paul Hanbury is a principal with Hanbury Evans Newill Vlattis & Company,
the architectural firm hired to design the mansion’s renovation.
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Virginia Governor’s Mansion: Intrusion Protection
The architect’s priority was maintaining the building’s aesthetics, so a clear
window film was specified. In addition to blocking up to 99% of the sun’s
damaging UV rays, these window films dramatically increase the level of
safety and security of glass windows and doors by serving as an invisible
shield, making it extremely difficult to break through the glass.
A week after installation, Michael Wescott, project manager with contractors
Daniel & Company, was so impressed with the results that he asked Glass
Protection Services to return to install film to all 96 panels of the mansion’s
security station. Since the restoration, hundreds of visitors have toured the
mansion, unaware of the added protection preserving the building’s
furnishings and increasing safety and security.
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Course Summary and Resources
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Safety Glazing/Human Impact
• Safety films may be used to upgrade your existing glass to a “tempered” glass; consult with your local code official.
Spontaneous Glass Breakage
• Safety films applied to tempered glass help reduce the risk of glass falling from the frame.
Intrusion Protection
• Security films can increase the time it takes to penetrate a window by as long as two minutes, helping to deter
intruders.
Blast Mitigation
• Safety films have been tested to GSA bomb blast standards and are often used to help protect occupants from flying
glass fragments.
Windstorm Protection
• Safety films help preserve the building envelope, helping to keep the elements out, reduce damage, and maintain
building operations.
Antigraffiti
• A sacrificial film layer for retail, advertisement, metro transit stops, or transportation will help preserve your image and
reduce the need to replace scratched glass.
Summary
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3M. http://www.3m.com/windowfilm Accessed March 2014.
American National Standards Institute - ANSI. http://www.ansi.org/ Accessed March 2014.
ANSI Z97.1 - American National Standard for Safety Glazing Materials Used in Buildings - Safety Performance
Specifications and Methods of Test. http://www.ansiz97.com/standard/ Accessed March 2014.
ASHRAE Standard 90.1 - 2007. https://www.ashrae.org/ Accessed March 2014.
ASTM F1642. Standard Test Method for Glazing and Glazing Systems Subject to Airblast Loadings.
http://www.astm.org/Standards/F1642.htm Accessed March 2014.
Consumer Products Safety Commission 16 CFR, Part 1201 - Safety Standard for Architectural Glazing Materials.
http://www.gpo.gov/fdsys/granule/CFR-2012-title16-vol2/CFR-2012-title16-vol2-part1201/content-detail.html Accessed
March 2014.
GSA-TS01 - Standard Test Method for Glazing and Window Systems Subject to Dynamic Overpressure Loadings.
http://www.gsa.gov/graphics/pbs/Standards_GSATestingStandard.pdf Accessed March 2014.
Bibliography and Resources
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