Fire-Rated Glass: What You Need to Know
30 July 2025 · 5 min read
Fire-rated glass buys precious time in a fire. Here's where it's needed and how the ratings work.
What fire-rated glass does
Fire-rated glass is designed to hold back flames, smoke and sometimes heat for a defined period — commonly 30 or 60 minutes — helping protect escape routes and contain a fire. It is used in fire doors, screens, and partitions in commercial and shared residential buildings.
It looks like ordinary glass but performs very differently in a fire.
Integrity and insulation ratings
Ratings describe how long the glass maintains 'integrity' (holding back flames and smoke) and, for some products, 'insulation' (limiting heat transfer so people can pass safely). The required rating depends on the building, its use, and fire-safety regulations.
Specifying the correct rating is a job for professionals, as getting it wrong has serious safety and legal implications.
Correct supply and fitting matters
Fire-rated glass only performs if it is installed in a compatible, correctly specified frame with the right seals and beading. The whole assembly — glass, frame and fixings — must be rated together. We supply and fit fire-rated glazing to the required standard for commercial premises.
If you need fire-rated glass for a building, get in touch for compliant advice and a quote.
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