Window security is quantified in security classes. The break-in resistance of a window or door is verified in accordance with the DIN EN 1627 standard. This is classified into eight resistance classes – “RC” for short.
RC 1 to RC 3 are recommended for private use. Higher protection classes are only usually required for business.
A resistance class provides protection against intruders. Only burglars who have sufficient time and the right tools will get into your house.
This security is not available with many older windows. A burglary is therefore possible in a few short seconds. In view of this, it makes sense to retrofit special security systems for windows and doors.