Safety & Bullet Resistant Glass
Security
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| 2-1/8" Thick Front View |
Back View |
Chevron. Installer:
Ken Rhodes Glass |
- This laminated glass was shot by a 9mm
caliber hand gun at about 50 feet.
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- Security is a concern for all business and the security
problem that are common to each business and area must be specifically addressed. Whether it be the
high risk situation of the correctional facility or the moderate risk of a display case, laminated glass made
with a polyvinyl butyral between the panes will provide a positive security option. Many options are
available such as multiple layers of glass with various thickness of interlayer, tempering or heat
strengthen the glass for additional integrity, or combinations of some of the aforementioned.
- The safety and security performance of laminated glass is
superior to non-laminated glazing for museums and zoo type applications. This is because laminated
glass typically remains integral and stays in place even when broken. Splinters and sharp fragments
adhere to the interlayer, minimizing the risk of injury from glass fallout. This safety feature is in
addition to the enhanced aesthetics by eliminating bars and metal grills.
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- Test Requirements of Bullet-resistive Laminated
Glass
| UL 752 Test1 |
Weapon |
- Ammunition,
- Typical Characteristics
|
- Typical
- Laminate
- Thickness2
|
|
| Medium power - Small Arms |
Super 38
- Automatic
|
130 grain metal case
- Velocity: 1280 fps.
- Energy: 475 ft.-lb.
|
1 3/16" |
|
| High Powder-Small Arms |
.357 Magnum
- Revolver
|
158 grain soft point
- Velocity: 1450 fps
- Energy: 740 ft.-lb.
|
1 1/2" |
|
| Super Powder-Small Arms |
.44 Magnum
- Revolver
|
240 grain soft point
- Velocity: 1470 fps
- Energy: 1150 ft.-lb.
|
1 3/4" |
|
| High Power-Rifle |
30-06 Rifle |
220 grain soft point
- Velocity: 2410 fps
- Energy: 2830 ft.-lb.
|
2" |
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- 1 Test are conducted at approximate
temperature conditions expected in use.
- 2 The projectile must not penetrate the
glazing, and the impact must not result in large fragments of glass being forcibly thrown
- from the backside of the sample for a
distance of 18" or more.
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Laminated Solar Energy Control Glass
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Radiant solar energy
is converted to thermal energy when it is absorbed. Depending on the architectural
application, this may or may not be desirable. Glazing solar control is accomplished by
reflecting and/or absorbing the solar radistion. Solar control glazing is normally
selected to reduce cooling costs by limiting solar transmission. Laminated glass will
block virtually all ultraviolet radiation. This interlayer also reduces solar heat gain in
the visible and infrared portions of the solar spectrum. Most reflective glass can be
laminated to reduce even further solar heat gain. Combining laminated glass into insulated
units will additionally improve thermal performance.
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continued Laminated Safety
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