Fire rated glass is an essential component in building design and construction, providing a crucial layer of protection against the devastating effects of fire. Knowing the different kinds of fire rated glass that are offered on the market is important for architects, builders, and property owners. To help you make informed decisions regarding fire safety in your projects, we will go over the most popular varieties of fire rated glass and their distinctive characteristics in this detailed reference.

types of fire rated glass

Polished wired glass


Polished wired glass is a classic and time-tested choice for fire rated applications. It has a rich history spanning over a century, making it one of the most prevalent options. The manufacturing process involves embedding lengths of wire or wire mesh into the glass, enhancing its structural integrity during a fire.

Key features:

– Commonly rated for 45 minutes

– Suitable for lite sizes up to 9 square feet

– Durable and reliable choice

Glass ceramic


Glass ceramic fire rated glass offers a sleek and modern alternative to traditional wired glass. It resembles ordinary window glass, providing designers with greater flexibility in their architectural choices. Despite its unassuming appearance, glass ceramics offer impressive fire ratings, ranging from 20 minutes to an impressive 3 hours.

Key features:

– Wireless appearance similar to standard window glass

– Fire ratings extend up to 3 hours

– Larger lite sizes, up to 24 square feet

Laminated fireproof glass


Laminated fireproof glass is a versatile option that incorporates special fireproof interlayers. When exposed to high temperatures, these interlayers expand, creating a white opaque fireproof rubber sheet that preserves the fire integrity of the glass. This type of fire rated glass is available with various characteristics, including fireproof, heat insulation or smoke insulation.

Key features

– Special fireproof interlayers for enhanced protection.

– Versatile options for different fire safety needs.

– Ideal for maintaining visibility during a fire event.

Toughened or tempered fireproof glass


Toughened or tempered fireproof glass is engineered to withstand the harshest conditions during a fire. It consists of multiple layers of toughened glass with intumescent interlayers. When exposed to flames, the glass closest to the fire rapidly heats up, causing the intumescent interlayers to expand and form a thick, opaque layer. This layer effectively blocks the transfer of heat and smoke.

Key features:

– Exceptional resistance to high temperatures.

– Rapid response to fire exposure.

– Prevents the spread of heat and smoke.

Insulated fireproof glass


Insulated fireproof glass is a comprehensive solution that combines fire protection with insulation properties. This type of fire rated glass is constructed with multiple layers of glass, separated by an insulating layer. It not only safeguards against fire but also helps regulate temperature, making it an excellent choice for areas where both fire safety and energy efficiency are priorities.

Key features:

– Provides fire protection and insulation.

– Ideal for maintaining comfortable indoor temperatures.

– Multiple layers for added safety.

types of fire rated glass

Considerations for architects and other stakeholders


When specifying fire rated glass in architectural projects, architects bear a significant responsibility in ensuring both safety and cost-effectiveness. They are not the only ones taking part in this decision-making process, though. These factors must also actively involve other stakeholders, such as property owners, contractors, and fire safety specialists.

1. Property Owners


Budget and long-term costs. Property owners need to understand that fire rated glass comes with a higher upfront cost compared to standard glass. Architects should communicate the long-term cost savings in terms of reduced fire damage and increased safety.

Insurance requirements. Property owners should consult with their insurance providers to determine if certain fire rated glass specifications may lead to lower insurance premiums, potentially offsetting the initial investment.

2. Contractors


Installation expertise. Contractors responsible for installing fire rated glass must be well-versed in the specific requirements and techniques for proper installation. The choice of glass should align with the contractor’s expertise and capabilities.

Logistical considerations. Contractors should consider the logistics of transporting, handling, and installing fire rated glass, which may require additional precautions and equipment.

3. Fire safety consultants


Code compliance. Fire safety consultants play a vital role in ensuring that the chosen fire rated glass meets local building codes and regulations. Collaboration between architects and fire safety consultants is essential to guarantee full compliance.

Custom solutions. In cases where unique fire safety challenges exist, consultants may recommend customised fire rated glass solutions tailored to the specific needs of a building.

4. Building occupants


Safety and awareness. The safety and well-being of building occupants are a priority. Architects and property owners should communicate the presence of fire rated glass and the safety it provides, instilling confidence in occupants.

Emergency evacuation. In the event of a fire, occupants should be familiar with evacuation procedures and the locations of fire rated glass installations, as these may serve as crucial exit routes.

5. Aesthetic integration


Design cohesion. Architects should balance safety requirements with the overall aesthetic goals of the project. Fire rated glass can be integrated seamlessly into the design to maintain the intended visual appeal while meeting safety standards.

6. Maintenance and inspection


Routine inspections. Architects and property owners should establish a schedule for regular inspections of fire rated glass to ensure it remains in optimal condition over time.

Maintenance planning. Architects should work with property management teams to develop maintenance plans for fire rated glass, addressing issues like cleaning, repairs and replacement when necessary.

Know the type of fire rated glass suited to your needs


The diverse range of fire rated glass options available in the market allows architects and builders to tailor their choices to specific project needs. Whether you prioritise aesthetics, insulation, or maximum fire protection, there is a fire rated glass type suited to your requirements. By understanding the features and benefits of each type, you can make informed decisions that prioritise safety without compromising design goals. Fire rated glass is a vital investment in any construction project, ensuring the safety and well-being of occupants in the face of potential fire emergencies.