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Safety Glass

The modern buildings bathed in natural light require glass with special features. The laminated glass combines into a single sheet of glass, identical in appearance with a normal glass, various functions necessary for modern glazings. This product provides protection for people and
buildings against various hazards.

Nowadays architecture is unthinkable without glass as a building material.

GLAZING RANGE

The safety glass range contains laminated glass combinations of different thicknesses with one or more layers of PVB foil (polyvinyl butyral), determining the safety class of the glass. The most frequently used types of laminated glasses are defined in the table below:

Glass type

Pvb-Foil

LOW-E layers

Resistance class

33.1

0.38 mm

No

33.1:

0.38 mm

Yes

0.76 mm

Yes

P1A

33.2:

44.1

0.38 mm

No

44.1:

0.38 mm

Yes

44.2

0.76 mm

No

P2A

55.1

0.38mm

No

The European Standard DIN EN 356 - glass resistance against attacks classifies the glasses according to their resistance to manual attack. The glass is hit with a steel ball weighing 4.11 kg, dropped from various heights. The resistance class of the glasses is determined according to the table below:

Impact of a 4,11 kg steel ball (D=100 mm) dropped from 4 different heights

Resistance class

Dropping height

Number of hits

P1A

1500

3 in triangle shape

EN 356 P1A

P2A

3000

3in triangle shape

EN 356 P2A

6000

3 in triangle shape

EN 356 P3A

P3A

P4A

9000

3 in triangle shape

EN 356 P4A

P5A

9000

3x3 in triangle shape

EN 356 P5A

Advantages

Safety
it remains in one piece, even after being broken,
preventing the risk of injury

Security
it withstands repeated blows with blunt objects

Protection
It can be used in applications involving exhibition of
valuables (windows)

Sound insulation
it provides a noise isolation level superior to that of a monolithic glass with the same thickness

UV protection
it ensures protection against the fading effect caused by ultraviolet rays

DATA SHEET

Covered
area

Description

Thickness

Ug [W/m2K]

Lt[%]

g[%]

Rw[dB]

33.1/14ar/4:

3

24 mm

1.1

80

59

33

33.1/12ar/6:

3

24 mm

1.3

79

62

33

3

24 mm

1.3

79

62

35

33.1/12ar/33.1:

33.1:/11ar/4/11ar/33.1:

3+5

24 mm

0.8

70

50

36

44.2/20ar/44.1:

3

38 mm

1.2

78

60

36

44.2/22ar/33.2:

3

38 mm

1.2

79

60

36

What does "safety" and "security" mean?

Although similar, the two words define different notions when they refer to glass. The safety glass is a glass that prevents risk of injury in case of impact. The security glass resists deliberate attacks performed manually, with firearms or explosives. Using only the right glass will not provide the required protection unless a proper frame and a proper mounting system are used. It is therefore imperatively necessary to combine the performant glass with proper joinery systems.

It is recommended to use the safety glass for the glazing of doors and windows located at a distance less than 1.5 m from floor.
Also, the same safety glass must be used for all fixed glazing areas located below 0.8m from the floor.

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