Building Materials 2026Updated

List of Fire-Rated Glass Partition System Manufacturers

Directory of manufacturers producing fire-rated glass partition systems for commercial interiors, including framing solutions, fire-resistive glazing, and tested assemblies for architects specifying code-compliant transparent fire barriers.

Available Data Fields

Company Name

Headquarters

Fire Rating Classes

Max Fire Rating (min)

Certification Standards

Product Types

Countries Served

Website

Contact Email

Key Product Lines

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Company Name	Headquarters	Fire Rating Classes	Max Fire Rating (min)
Vetrotech Saint-Gobain	Faribault, MN, USA	E, EW, EI	120
SAFTI FIRST	Merced, CA, USA	EW, EI	120
Technical Glass Products (TGP)	Snoqualmie, WA, USA	E, EW, EI	120
SCHOTT AG	Mainz, Germany	E, EW	90
Pilkington (NSG Group)	St Helens, UK	E, EW, EI	180

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Fire-Rated Glass Partition Systems: Manufacturer Landscape

Fire-rated glass partitions allow architects to maintain open, light-filled floor plans while meeting building code requirements for fire compartmentalization. These systems combine specialty glass—ceramic, borosilicate, or multi-laminate intumescent—with engineered framing to achieve tested fire-resistance ratings from 20 minutes to 3 hours.

Classification Framework

E (Integrity Only): Prevents passage of flames and hot gases. Suitable for smoke screens and vision panels where radiant heat is not a concern.
EW (Integrity + Reduced Radiation): Limits radiant heat on the unexposed face to below 15 kW/m² at 1 m distance. Used in corridors and escape routes.
EI (Integrity + Insulation): Maintains surface temperature on the unexposed side below 140°C average. Required for fire walls, property-line glazing, and high-occupancy separations.

Glass Technologies

Technology	How It Works	Typical Rating
Borosilicate glass-ceramic	Low thermal expansion resists thermal shock	E 60–90 min
Intumescent multi-laminate	Transparent interlayers foam opaque under heat, blocking radiation	EI 30–180 min
Gel-filled insulating units	Sodium silicate gel absorbs heat and turns opaque	EI 30–120 min

Specifying Fire-Rated Glazing

Successful specification depends on matching the tested assembly—glass, framing, seals, and hardware—to the required fire-resistance level. Key considerations include:

Tested assemblies: Fire ratings apply to the complete system, not the glass alone. Mixing components from different manufacturers voids the rating.
Maximum panel sizes: Tested dimensions vary by product. Larger panels generally require thicker or multi-layer constructions.
Acoustic performance: Multi-laminate fire glass often delivers STC 35–45, providing useful sound attenuation as a secondary benefit.
Labeling requirements: IBC Section 716 and EN 16034 mandate permanent labels on fire-rated glazing identifying the manufacturer, product, and test standard.

Major Standards and Test Methods

Standard	Region	Scope
ASTM E119 / UL 263	North America	Fire-resistance of building elements
NFPA 257 / UL 9	North America	Fire test for window assemblies
EN 1364-1	Europe	Fire resistance of non-loadbearing walls
EN 1279-1 + EN 357	Europe	Classification of fire-resistant glazing
BS 476 Part 22	UK	Fire resistance of non-loadbearing elements

Frequently Asked Questions

Q.Do fire ratings apply to the glass alone or the complete partition system?

Fire ratings apply to the tested assembly as a whole—glass, framing, seals, and hardware together. Using glass from one manufacturer in another framing system will void the rating unless that specific combination has been independently tested and certified.

Q.What is the difference between E, EW, and EI fire-rated glazing?

E-rated glass maintains integrity against flames and smoke only. EW adds reduced radiant heat transmission. EI provides full insulation, keeping the unexposed surface below 140 degrees C. Your building code and the partition location determine which classification is required.

Q.How is this manufacturer data collected and how current is it?

When you request the dataset, AI crawls manufacturer websites, distributor listings, and certification databases to compile current product lines, fire ratings, and contact details from publicly available sources.

Q.Can fire-rated glass partitions also provide acoustic insulation?

Yes. Multi-laminate intumescent glass typically achieves STC 35-45 due to its layered construction. However, acoustic performance depends on the complete assembly including framing and seals, not just the glass.