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P2, P3 and P4 glass – a guide to burglar proof safety glass.

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Home safety and security is a priority for many property owners. The right choice of safety and anti-burglary glazing can significantly affect the level of protection. In this article, we will discuss what types of safety glass are, their designations, applications and whether it is worth investing in burglar proof windows.

What is safety glass?

Definition of safety glass

Safety glass is a type of glass that is designed to minimize the risk of injury in case of breakage. It is characterized by increased impact strength and specific properties that ensure that it does not form sharp, dangerous shards when broken.

General applications of safety glass in construction and industry

Safety glass is used in many places, both in residential and commercial construction. It is used in windows, doors, railings, as well as in vehicles and in public buildings such as schools and hospitals.

Types of safety glass: P2, P3, P4

P2 glass: Is P2 glass anti-burglary?

P2 glass is one of the basic types of safety glass, which offers a basic level of protection against burglary. It consists of two layers of 4mm thick glass, which are bonded by a 0.76mm PVB film.

Burglary properties and applications

P2 glass provides a certain degree of protection against burglary, delaying the intruder and increasing security. It is mainly used in first floor windows and balcony doors.

What is P3 glass?

P3 glass is an advanced type of security glass that offers a higher level of protection compared to P2 glass. It consists of two layers of glass, but the PVB film is thicker than in P2 glass, which increases its impact resistance.

What kind of glass is P4 glass?

P4 glass is the highest standard among safety glass, offering the highest level of burglary protection. It consists of two sheets of glass, each 4 mm thick, joined by three layers of PVB film, which makes it extremely impact-resistant.

The highest level of protection among safety glass

P4 glass is most often used in places requiring the highest level of security, such as banks, jewelry stores and government buildings.

What designation does safety glass have?

Standards and norms for marking safety glass

Glazing designations such as P2, P3, P4 indicate different levels of protection. Safety glazing is marked according to international standards, such as EN 356, which classify glass in terms of impact resistance.

When should safety glass be used?

Safety glass should be used in areas exposed to high mechanical loads, such as entrance doors, first floor windows and interior partitions.

Cost and cost-effectiveness of security windows:

How much do burglar-proof windows cost?

The cost of burglar-proof windows depends on many factors, such as the type of glass, the size of the window and additional features. The average cost can range from several hundred to several thousand zlotys per window.

The costs include not only the purchase of the windows themselves, but also their installation. This investment can be significant, but is often worthwhile in the long run.

Is it worth it to buy anti-burglary windows?

The advantages of investing in burglar-proof windows are numerous. They offer increased security, can reduce property insurance costs and increase the value of a home.

Burglar-proof windows are especially recommended for single-family homes, ground-floor apartments and buildings with a higher risk of burglary.


In conclusion, choosing the right security and burglar-proof windows is key to ensuring the security of your home. Understanding the differences between different types of glazing and their designations will help you make an informed decision. Investing in burglar proof windows can be expensive, but the benefits, such as increased security and peace of mind, often outweigh the expense.