fire-rated glazing - · pdf filefire-rated glazing definition . specialized glass designed to...
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Fire-Rated Glazing
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History of Fire-Rated Glass
•Traditional wired glass •Glass block •Thin and wireless glass ceramic •Transparent wall units
History of Fire-Rated Glass
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Outline
Presentation Overview
•Testing Components •Fire Protective vs. Fire Resistive •Labeling - New Labeling System for Fire-Rated Glass •Non-Code Compliant Products
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Fire-Rated Glazing Definition Specialized glass designed to prevent the spread of flames and smoke. • Glass earns fire ratings through rigorous testing processes at
independent laboratories such as Underwriters Laboratories, Inc.® (UL)
• Fire-rated glazing for door and window assemblies are rated from 20 minutes to 3 hours
• The rating reflects the amount of time the material has been tested to remain in place to help stop the spread of fire and smoke
Fire-Rated Glazing
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Two Key Purposes of Fire-Rated Glass
•Allows visibility into a space
•Prevents fire from spreading
Fire-Rated Glazing
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Key Testing Components for Fire and Human Impact Safety Fire Test - Measures the amount of time, in minutes or hours, that materials or assemblies can withstand fire exposure in a furnace. Hose Stream Test - Heated glass and frames are subjected to water from a fire hose. The cooling, impact and erosion created by the hose stream tests the integrity of the glass and frames and eliminates inadequate materials. Impact Safety Test - Measures the ability of glass to withstand impact. Ratings are given in levels based on the amount of force the glass can resist.
Fire-Rated Glazing
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Impact Safety Test
Click on video to play
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Safety Glazing Classifications CPSC 16 CFR 1201 (Category II)
• 400 ft. lbs. pressure • Tempered Glass, typical laminated glass, filmed glass
CPSC 16 CFR 1201 (Category I)
• 150 ft. lbs. pressure • Permitted up to 1,296 in2
ANSI Z97.1 (Traditional Wired Glass Only)
• 100 ft. lbs. Pressure • Permitted up to 1,296 in2
Safety Glazing
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Fire Test
Click on video to play
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Hose Stream Test
Click on video to play
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FIRE PROTECTIVE • Stop flames and smoke
• “Thin” glazing
• Traditional fire-rated material (wired glass, glass ceramic, hollow metal steel frames, etc.)
• Fire Windows: 45-90 Minutes
• Fire Doors: 20 minutes – 3 hours
• May not exceed 25% of the area of a common wall
• May not exceed 156ft2
• May not be used as “windows” in shaft condition
Types of Fire-Rated Glazing
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FIRE RESISTIVE • Stop flames, smoke, AND radiant
heat (Both glass and frames)
• “Thick” glazing
• Classified as a “wall” rather than an opening (window)
• Both glass and frames must block passage of radiant heat
Types of Fire-Rated Glazing
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Labeling Requirements
Why is Fire-Rated Glazing Labeled? • Enables code officials to accurately inspect glazing
• Owner, architect, facility manager can confirm they received correct product
• Fire Officials can plan safe evacuation methods • Firefighters will understand the type of glass present in a building
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Labeling Requirements
Labeling Methods • Pilkington Method – Accepted by ICC in 2004
Labeled as a wall, opening or door (W, O, D) Hose Stream Test (H) Rating in minutes (20, 45, 60, 90, 120 min)
• European Method – Rejected by ICC Labeled as integrity (E) or insulating (EI)
• Other proposal – Rejected by ICC Protection (P) or Resistance (R)
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Labeling Requirements
Label Background • “W” indicates that the glass passes ASTM E119
This is the wall standard which includes temperature rise and hose stream
• “D” indicates that the glass passed NFPA 252 Door standard
• “O” indicates that the glass passed NFPA 257 Opening standard
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Labeling Requirements
Fire-Rated Glass Manufacturer Label
2” wide x .75” tall
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Labeling Requirements
Fire-Rated Frame Manufacturer Label
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Labeling Requirements
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Labeling Requirements
UL Online Certifications Directory • Available online at database.ul.com • Search for UL File Number found on label for more information on listing
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Labeling Requirements
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Labeling Requirements
Search results
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Labeling Requirements
Framing connection to wall
Framing connection to
wall
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Labeling Requirements
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Labeling Requirements
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Questions: • What is the required fire-rating for the application? • Does the glazing meet impact safety standards? • Are there performance films or laminates? • Are there any acoustic needs? • Does the glazing material need to block the transfer of radiant heat? • Is the glazing being installed into the proper framing assembly (matched
fire-ratings)? • Once the glazing has been selected, did you confirm the material has
been tested by a testing agency such as UL and can be validated through that testing agency?
Selecting Fire-Rated Glazing
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Non-Code Compliance
Non-Code Compliance Situations • Non-tested assemblies
All components must have a complete laboratory listing Fire-rated skylights
• Modified assemblies-must be installed EXACTLY as tested Film on fire-rated glazing Wood trim or other combustibles on a fire-rated frame
• Improperly tested products Non-accredited testing lab Partial testing of a product
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Installation
Who installs these products? • Glazing contractors
• Door installation contractors • General contractors Are there any needed qualifications / certifications? No – detailed installation manuals accompany all projects
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Case Studies
Project: University Hospitals, Seidman Cancer Center
Location: Cleveland, OH
Architect: Cannon Design
Products: 20-90 minute fire-rated steel doors and frames with 20-180 minute fire-rated, safety-rated glass ceramic
TGP Photos
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Case Studies
Project: MultiCare Good Samaritan Hospital, Dally Tower
Location: Puyallup, WA
Architect: Good Sam Design Collaborative, in conjunction with Clark/Kjos Architects and GBJ Architecture
Products: 45-120 minute fire-rated steel curtain wall with 45-120 minute fire-rated, safety-rated glass firewall
TGP Photos
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When facing a decision that affects life safety, make sure the products used meet all code requirements. Not all products are created equal.
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