Security window frame add-on

The invisible roller shutter

Knowing that bars and shutters can easily be bypassed by resourceful criminals, Hammerglass offers "The Invisible Shutter" - Hammerglass ADD-ON.As well as blocking the view of the shop, the grille has in many cases given the shopkeeper a false sense of security as it can be easily removed with the help of a chain attached to the vehicle's hitch.Hammerglass ADD-ON is the burglary protection that stays permanently in place.

Recommended alternative to grilles and shutters

Hammerglass ADD-ON consists of a Hammerglass pane in a steel profile that can be attached to existing fixed or opening windows and doors both internally and externally.The system offers effective protection against burglars.The ADD-ON profile made of cold-rolled steel protects and strengthens existing wooden frames and makes break-in attempts significantly more difficult.In the event of an attempted break-in, the material offers no leverage as the steel profile only yields at the point of entry, unlike the more rigid aluminum profiles which can be flexed when a tool is pressed under the profile.The system also delivers energy savings and U-value improvements, as well as a 30dBRw noise reduction.ADD-ON is certified for protection up to security class P8B and is recommended by insurance companies as an alternative to anti-theft grilles and roller shutters.

• Protects against burglary and vandalism - personal protection
• Replaces anti-theft grilles and shutters
• External or internal installation in front of existing windows
• Internal mounting protects against shrapnel injuries in the event of an explosion
• 6, 8, 10 or 12 mm Hammerglass in shatterproof steel profile
• Reinforces existing wooden frames
• Improves U-Value
• Soundproofing of 30 dBRw
• Burglar resistance according to EN 1627 RC3
• Security class P8B, EN 356
• Offers increased protection against burglars and vandals for shops, schools, public facilities, etc.

Installation and guarantee

Hammerglass ADD-ON is only installed by recommended installers to ensure the highest quality.The glazing material is 6mm or 8mm Hammerglass (10mm or 12mm Hammerglass for larger windows).The Hammerglass is glued along the edge and then screwed through the steel profile to ensure an optimal result and a secure hold.The existing architecture is not further impaired by the installation.All Hammerglass discs are laser marked with a logo and production number to ensure traceability for internal quality assurance and safety in the event of warranty issues.