Proper behavioral measures, mechanical fuses supported by electronic safety technology offer great protection. Essential is the mechanical security. This slows or prevents the burglary and causes more noise.
Burglar resistance in curtain walling as a mullion-and-transom construction is regulated in the DIN EN 1627-1630 series of standards. There, requirements, test methods and classification of the resistance are defined, static and dynamic loads as well as manual burglary attempts are described. There are 7 resistance classes (RC = resistance class). In addition, attack-resistant glazing is regulated in the test standard EN 356. Normal glazings have no burglar-resistant effect. Effective protection is achieved by laminated safety glass (VSG) or bulletproof glass, which distinguishes between non-impact and break-through glazing.
Glasses – Brief description of the classes according to EN 356:
The test procedure, test procedure and classification are regulated by the standard DIN EN 356.
Impact-resistant glasses are classified in classes P1A to P5A. In the test method, a 4.11 kg metal ball with a diameter of 100 mm falls from a given height onto a glass sample with a defined target area. The sample is the number of specimens that are representative of the corresponding resistance class. In class P5A, each specimen shall survive 9 drop tests of 9.0 m with the ball always in the same places.
|Resistance Class||Number of specimens per sample||Drop tests per test piece||Fall Height|
|P5A||3||3 x 3||9,0 m|
Visible glass panel approx. 840 x 1040 mm
Hit field, triangle with edge lengths 130 mm in the center of the disc, parallel to the short side
In the case of breakthrough-resistant glazings, an attempt is made with an ax or a hammer to produce a breakthrough with an edge length of 400 × 400 mm. The glazing is classified into the classes P6B, P7B and P8B and differs by the number of axles. The impact velocity is measured in m / s and the impact energy in N / m.
|Resistance Class||Number of specimens per sample||Total number of strokes per specimen|
|P6B||3||30 bis 50|
|P7B||3||51 bis 70|
Visible glass panel approx. 840 x 1040 mm
Hit field, square with edge lengths 400 mm in the center of the disc
min a = 50 mm
max a = 130 mm
Curtain-Wall-Facades – Brief description of the classes according to EN 1627:
The manual burglary test attempts to break a passable opening into the locked and closed component. This can be a rectangle 400 x 250 mm, an ellipse 400 x 300 mm or a circle with a diameter of 350 mm. The tools used are specified in type, size and performance according to the individual resistance classes.
In addition to the manual burglary test, the system is loaded statically and dynamically. The static test is performed by applying a defined load and measuring the resulting deformations. Pendulum impact with defined weight and drop height simulates a dynamic load on the attack side.
The storage of the mullion-and-transom construction must be statically sufficient and safely absorb the forces that occur during burglary. Accessible fixing screws must be secured against unauthorized loosening. Burglary-resistant facades are intended for installation in solid walls (masonry, reinforced concrete, aerated concrete). For wall connections, the minimum requirements specified in EN 1627 apply.
Proper installation according to the processing guideline of the system supplier should be documented by a mounting certificate from the manufacturer of the facade. EN 1627 provides a template for this. A corresponding form is also available from Stabalux.
|Resistance Class||Resistance Time|
Examples of tools
|RC 1 N||Check only static and dynamic, not manual||Small tools 1)||normal glazing|
|RC 2 N||3 Min.|
Screwdrivers, pliers, and wedges
|RC 2||3 Min.||Screwdrivers, pliers, and wedges|
according to EN 356, e.g. P4A
|RC 3||5 Min.||Screwdrivers, pliers, wedges and a cow foot|
according to EN 356, e.g. P6B
|RC 4||10 Min.|
Saw + impact tools such as ax, chisel, hammer, chisel, cordless drill
|according to EN 356, e.g. P6B|
|RC 5||15 Min.||Power tools such as a drill, jigsaw or saber saw, angle grinder||according to EN 356, e.g. P7B (with additional attack during RC5 exam)|
|RC 6||20Min.||Power tools such as a drill, jigsaw or saber saw, angle grinder||according to EN 356, e.g. P8B (with additional attack during RC6 exam)|
The selection of the resistance class to be used must depend on the individual hazard situation, for example on the position in the object and the visibility of the element. The criminal police advisory services and insurers provide assistance.
|Resistance Class||Criminal Profile||Recommended place of use of the burglary-resistant component|
|Residential||Commercial buildings, public buildings||Commercial buildings, public buildings (high risk)|
|RC 1 N||Vandalism 1)||If burglar resistance is required, the use of RC1N only recommended for components without direct access (eg upper floors, if there is a need for a promotion if there is not enough space)|
|RC 2 N||Opportunist||X 2)|
|RC 2||Occasional offenders, (usual perpetrators) 3)||X||X|
|RC 3||usual perpetrator||X||X|
|RC 4||experienced offender||X||X|
|RC 5||experienced offender||X|
|RC 6||experienced offender||X|
The tested and assessed by expert opinions systems Stabalux SR and Stabalux H meet the requirements of the resistance classes RC 2 and RC 3, so the majority of the hazardous situations is covered. The evidence was provided by a recognized and notified testing institution.
Detailed information on burglar resistance in the systems Stabalux SR and Stabalux H can be found in the accompanying catalog sections “Knowledge / Burglar-resistant facades”.