Fire Resistant Glass Block

An important feature critical to safe building design is a product’s inherent fire-resistance property. Fire resistant glass block is available in 45, 60, 90, and 120 minute fire ratings. Fire-Rated glass block is also graffiti resistant, noise resistant, has design flexibility and enhanced security. We carry all patterns of fire rated glass block in our well-stocked glass block warehouse.

By varying the face thickness of the glass block and conforming to installation specifications, we offer a family of fire rated products approved and rated according to Underwriters Laboratory (UL®) standards. Fire-Rated glass blocks are available in our Seves THICKSET® 60- and Seves THICKSET® 90-minute ratings for window assemblies, as well as VISTABRIK®. Seves fire-rated glass blocks are perfect for lot line windows, stairwells, corridors and where light and security are desired.

PREMIERE SERIES:

• Includes the largest selection of patterns and sizes for the utmost in design flexibility.
  

  Fire Rated Thickset 90 block in Clarity pattern

• All patterns of PREMIERE SERIES are classified by UL®‚ for use in 45-minute rated window assemblies.
• Available patterns include: CrossRib, Wavy, Ice and Clearview.
• Available in all sizes except 12″ x 12″ (Wavy only) and shapes.
• Nominal face thickness: 0.25″
• Sound Transmission Class (S.T.C.) = 39

THICKSET® 60 Block

• Thicker-faced block that provides all the traditional benefits of glass block plus a 60-minute fire rating.
• Classified by UL®‚ for use as 45-or 60-minute rated window assemblies.
• Available patterns include: Wavy AND Clearview.
• Available sizes: 8″ x 8″ x 4″
• Nominal face thickness: 0.375″
• Sound Transmission Class (S.T.C.) = 48
  

  Fire Rated Glass Block in a zero-lot line application between buildings

THICKSET® 90 Block

Nubio Thickset Fire Rated Glass Block

• Thicker-faced block that provides all the traditional benefits of glass block plus a 90-minute fire rating.
• Classified by UL®‚ for use as 45-, 60- or 90-minute rated window assemblies.
• Available patterns include: Wavy AND Clearview.
• Available sizes: 8″ x 8″ x 4″
• Nominal face thickness: 0.75″
• Sound Transmission Class (S.T.C.) = 50

VISTABRIK® Solid Glass Brick

• The ultimate glass block solution, 3 solid inches of glass which resists bullets, fire, noise, graffiti and forcible entry.
• Classified by UL®‚ for use as 45-, 60- or 90-minute rated window assemblies.
• Available patterns include: Clear – for good visibility
• Available sizes: 8″ x 8″ x 3″, 3″ x 8″ x 3″
• Actual face thickness: 3.0″
• Sound Transmission Class (S.T.C.) = 53

120 Minute Fire-Rated Glass Block

2-Hour Fire Rated Glass Block  

• Test Method: ASTM E-119, UL 263-19 and CAN/ULC S101-14
• Series / Line: High Performance
• Block Size: 19cm x 19cm x 13cm or 7.48″ x 7.48″ x 5.11″
• Available Patterns: Wave and Clarity
• Heat Transmission U-Value (BTU/hr ft2 °F): 0.28Thermal Resistance R-value (hr ft2 °F/BTU): 3.61

Testing Summary:
The glass block wall assembly withstood the fire exposure of ASTM E119 for a period of 120 minutes. A second, duplicate wall assembly was  subjected to a hose stream test following a fire exposure of 1/2 the duration of the initial fire exposure test of 2-hr which resulted in no projection of water through the unexposed face. The wall assembly obtained a fire resistance rating of 120 minutes.