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Everything You Need To Know About Riot Glass J Series Sub-Framing

Written By: Brad CampbellSeptember 13, 2024

Riot Glass J Series sub-framing is an innovative security glazing retrofit solution designed to improve the security of historic and modern buildings without compromising their architectural integrity by drilling or otherwise modifying the surrounding framing.

What Is Riot Glass J Series Sub-Framing?

Riot Glass J Series sub-framing, also known as the Compression Framing System, is a versatile and robust sub-frame designed to support Riot Glass and ArmorPlast retrofit security glazing. It provides a smooth, even surface for mounting secondary glazing systems, making it ideal for retrofitting historic structures and buildings with damaged or uneven existing framing.

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Key Features of J Series Sub-Framing:

  • Available in ballistic and forced entry grades
  • Custom-made to the dimensions of each window opening
  • Non-invasive installation without drilling or permanent damage
  • Meets ASTM F3038 forced entry testing for 15 minutes
  • Compatible with Riot Glass RG Series and ArmorPlast AP Series retrofit systems

Benefits of Using J Series Sub-Framing

Preservation of Historic Architecture

One of the primary advantages of the J Series sub-framing is its ability to preserve the original materials and aesthetics of historic buildings (it was designed specifically for this). 

The patented compression technology allows for secure installation without drilling or permanently altering the structure. This makes it an excellent choice for courthouses and other government buildings with historical significance.

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Enhanced Security

The J Series sub-framing provides a sturdy foundation for installing forced entry-resistant and ballistic-grade glazing, significantly enhancing the security of any building. 

By meeting stringent ASTM F3038 forced entry testing requirements, the J Series ensures that windows can withstand a 15-minute forced entry attempt by multiple attackers using readily available tools and objects.

Flexibility and Customization

Each J Series sub-frame is custom-made to fit the exact dimensions of individual window openings, ensuring a perfect fit and optimal performance. This flexibility allows for the sub-framing to be used in various scenarios, including buildings with damaged or uneven existing framing.

Easy Installation and Removal

The non-invasive installation process of the J Series means that it can be easily removed at a later date without leaving any trace of its presence. This is particularly beneficial for historic buildings where maintaining the original architecture is crucial.

Applications of J Series Sub-Framing

Courthouse Hardening

Courthouses often require additional security measures to protect against threats such as forced entry and civil unrest. The J Series sub-framing is ideal for courthouse hardening, providing a robust structure to support security glazing without compromising the building's historic integrity.

Government Buildings

Many government buildings, especially those with historical significance, can benefit from the non-invasive security solutions offered by the J Series sub-framing. It allows for the integration of modern security measures while preserving the original materials and appearance of these important structures.

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Buildings with Damaged or Uneven Framing

In cases where existing framing conditions are not conducive to a security glazing retrofit, the J Series sub-framing provides a smooth, stable surface for mounting security glazing. This makes it suitable for buildings with damaged, uneven, or otherwise limiting existing framing conditions.

The J Series Installation Process

The installation of J Series sub-framing is straightforward and designed to be minimally invasive. Here’s an overview of the process:

  1. Assessment and Customization:
  • A detailed assessment of the window openings is conducted
  • Custom measurements are taken to ensure a perfect fit for each sub-frame
  1. Fabrication:
  • The J Series sub-frames are fabricated to the exact dimensions of the window openings
  • Ballistic and forced entry grades are selected based on the security requirements
  1. Installation:
  • The sub-frames are installed using the patented compression technology
  • No drilling or permanent modifications are made to the existing structure
  1. Glazing Integration:
  • Riot Glass or ArmorPlast security glazing is mounted onto the sub-frames
  • Additional layers of security, such as ArmorPlast Gen II Series framing, can be added if needed
  1. Final Inspection:
  • A thorough inspection ensures that the installation is secure and meets all safety and security standards

Technical Specifications and Qualifications

The Riot Glass J Series sub-framing boasts impressive technical specifications and qualifications that make it a reliable choice for enhancing building security. Here are some of its key attributes:

Ballistic and Forced Entry Grades:

  • Available in various grades to meet different security needs
  • Ballistic-grade options provide bullet resistance, while forced entry grades resist physical attacks

ASTM F3038 Testing:

  • Meets the ASTM F3038 standard for a 15-minute forced entry attempt by multiple attackers
  • Ensures robust protection against forced entry and other physical threats

Compatibility:

  • Works seamlessly with Riot Glass RG Series and ArmorPlast AP Series security glazing
  • Can be used as a foundation for ArmorPlast Gen II Series framing for enhanced security

Non-Invasive Installation:

  • Uses compression framing technology for installation without drilling
  • Leaves no permanent damage or traces when removed

Frequently Asked Questions

Can the J Series be used in non-historic buildings?

Yes, while the J Series is designed with historic buildings in mind, it is also suitable for modern buildings with damaged or uneven existing framing or other limiting factors.

Does the J Series sub-framing include security glazing?

The J Series refers to the sub-framing itself. However, it is designed to work seamlessly with Riot Glass and ArmorPlast retrofit security glazing, available in both containment-grade and ballistic-grade models.

How does the J Series improve building security?

The J Series provides a robust, stable foundation for mounting forced entry-resistant and ballistic-grade glazing, significantly enhancing the security of windows and preventing unauthorized entry.

Is the J Series removable?

Yes, the J Series sub-framing can be cleanly removed without leaving any signs of its installation, making it ideal for security upgrades in historic buildings.

Conclusion

Riot Glass J Series sub-framing offers a unique, non-invasive solution for hardening the security of historic and modern buildings. 

The J Series’s ability to preserve the original architecture while providing robust protection against forced entry and even ballistic threats makes it an invaluable asset for courthouse hardening and other historic building security applications. By choosing the J Series sub-framing, building owners can achieve a perfect balance between maintaining historical integrity and ensuring modern security standards.

For more information on how the Riot Glass J Series can boost your building’s security, contact us today to schedule a free consultation.

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Looking for residential protection? At Riot Glass, we specialize in protecting your property with our patented bullet-resistant system, designed specifically for aluminium framed windows. Not sure if Riot Glass is right for your home? Explore our FAQs.
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