Fire Screens Explained | The Fire Rated Glass Partition Breakdown

What does Integrity & Insulation mean in Fire Screens & Fire Rated Glass Partitions - Explained by Clear Divide

When it comes to protecting lives and property, not all glass is created equal. Fire rated glass partitions are a critical component in passive fire protection, but what exactly do terms like Integrity and Insulation mean? And why should you trust Clear Divide Glass Partitions for your fire screen solutions?

What Do We Mean by Integrity and Insulation?

In the world of fire rated glazing, Integrity (E) and Insulation (I) are two essential performance measures used to classify how fire resistant a glass system truly is.

✅ Integrity (E): Containment of Flames and Smoke

This measures how long the glass can withstand fire exposure without allowing flames or hot gases to pass through.

• Prevents the spread of fire from one space to another
• Maintains a physical barrier during a fire
• Remains intact under high temperatures for the specified fire resistance period

✅ Insulation (I): Heat Transfer Resistance

Insulation takes fire protection a step further. It refers to how long the glass can reduce heat transfer from one side to the other.

• Helps prevent injury from radiant heat
• Protects nearby materials and people on the safe side
• Can be vital in corridors and escape routes

Examples of Fire Ratings

E30 (30/0) -   30 minutes of integrity – prevents flames/smoke, but not heat.

EI30 (30/30) -  30 minutes of integrity and insulation – prevents flames and heat transfer.

EI60 (60/60) -  60 minutes of fire rated protection (integrity + insulation).

Note: Fire rating requirements should always be confirmed by your local building control authority. Clear Divide does not provide regulatory advice.

🔥What About Fire Rated Glass Doors?

Not a problem, whether you need E30 (30/0) or EI60 (60/60), we offer fire rated glass doors designed to seamlessly integrate with our glazed fire screen systems.

Why Choose Clear Divide Glass Partitions for Your Fire Rated Glass Screens & Glass Doors?

At Clear Divide, we’re specialists in fire-rated and non-fire-rated glass partitions for commercial, residential,  and office environments. Here’s what sets us apart:

✔️ Expert knowledge of fire rated systems

✔️ Access to high performance fire screens and glazed doors

✔️ Fully compliant solutions tailored to UK building regulations

✔️ Honest advice with no over specifying

✔️ End-to-end service: survey, supply & installation

Whether it’s a 30 minute integrity screen or a full EI-rated glazed partition, we deliver systems that meet safety standards without compromising on aesthetics. Learn more about our E30 30/0 Aluminium Fire Screens or our EI Steel Fire Screens.

Here’s a snapshot of a couple of our Steel & Aluminium Fire Screen installations:

Steel Fire Screens & Doors Installation

Aluminium Fire Screen Installation

Ready to Experience the Clear Divide?

When you choose Clear Divide, you’re not just buying glass, you’re investing in a service that prioritises safety, design, and lasting value. We invite you to experience the clear divide in expertise, style, and service. 

Trusted fire-rated glass partition installers working across the North East and beyond. 

Visit our Contact Page today — we look forward to helping you create your perfect space.

Steel Fire Screens and Doors installed on The Team Valley Trading Estate, Gateshead

E30 (30/0) Steel Glazed Fire Screens with Single Door Sets

E30 (30/0) Aluminium Double Glazed Fire Screen including Banded / Crittall Style Bars to give an industrial look

E30 (30/0) Aluminium Fire Screen Installed at Newcastle Metro's New Home in Gosforth, Newcastle

E30 (30/0) Banded Fire Screen, including Industrial Style Bars in a Residential Setting

E30 (30/0) Frameless Fire Screen in a Residential Setting

EI30 (30/30) Steel Glazed Fire Screen installed in to an educational setting