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Handbook
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Handbook - 1

Handbook of Fire-Rated Glass for schools + A

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Handbook - 2

THE RULES HAVE CHANGED For dcades, traditiona I wired glass has been the most common fire-rated glass productspecified forschools in North America. It'sno wonder-- it provideseconomicaland reliable fireprotection. And fora long time. wired glass was the only producl available Itiat could do the job. But there is a down side: Despite its tough appearance, traditlonal wired glass can't toleratemuch impact. And when it breaks, the wirescan form snags that are capable of inflictingserious injury. When fire codes were first being drafted. traditional wired glass was the only glazing material...

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Handbook - 3

can represent a potenlial for problems. Realizing this. the International Code Counr.il (ICC) decided to lift the long-standing impact exemption for wired glass. Now. ail fire-rated glass in K-12 schools and athletic facilities, when used in hazardous locations (doors, sidelites. etc.), must meet the higher impact requirements. This is a monumental shift, having far-reaching implications. The following pages answer some of the most common questions that have been raised because of this change. IBC 2006 SECTION 2406 SAFETY GLAZING 2406.1 Ail glazing in hazardous locations as defined in...

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Handbook - 4

What testing does fre-rated glass have to pass? Glass and framing are installed vertically in the test fumace of an independent test laboratory, such as Underwriters Laboratories, Inc.* (UL). The fire is ignited and tempratures are measured on the surface of the glass. Ratingsare given based on the length of time the glass remains intact, from 20 minutes to 3 hours. Ordinary window glass can withstand tempratures of approximately 250° F. However, after only 5 minutes, a "real wortd' fire (and the fire test) tempratures reach nearly 1,000° F. Glass that withstands an hour in the fire test...

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Handbook - 5

Are there diffrent levels of impact safety for gtazing materials? Yes. This issue is extremely important in schools and relates to the impact safety test and the level from which the impact bag is dropped. The various impact ratings are very revealing. Let's start with the most common level of impact safety and work ourway to lower levels. M-inch drop This represents *tOO fVlb of impact and is called "Category M" by the F鯩dral CPSC (Consumer Products Safety Commission). It is the highest level of required impact safety. This represents the impact of a full-grown adult running into the glass...

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Handbook - 6

When using glass in fire-rated locations, is impact safety glass always required? No. Building codes deariy define where impact safety glass is required. Common applications for high impart glass are doors. sidelites. glass located near Ihe floor, and other "hazardous locations", as defned by building codes. In those areas. any fire-rated productwould also need to be impact safety-rated. In areas where human contact is not a concern (transoms. some Windows) an impact rating would not be required. For those areas, there are fire-rated products that are not impact rated which are generally...

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Handbook - 7

If, duetotheInternational Building Code(IBC),l'm nolongerusingtraditionalwiredglass in hazardousareas,whatproductsareavailable? There are two primary catgories of alternatives to wired glass that can be labeled as "Thin"and "Thick" glass. THIN There are now several products with or without wires that make outstanding alternatives to traditional wired glass. The FireLite* family of products and WireLite* NT are examples. Approximately 1/V to 5/16" thick, they fit in standard fire-rated frames. Depending on the product, thse newer ma te riais are available in large sizes and have fire ratings...

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Handbook - 8

into account when choosing fire-rated glazing for schools? Schools are unique in the construction industry, because they raise several issues that typically do not arise with other occupancies. High Activity Educational facilities are subject to greater activity than a typical office building. The constant movement of students throughout the day means that impact safety must be a high priority. Abuse School hallways and common areas are likely to be defaced, either intentionally or unintentionally. The fire-rated glazing chosen should be durable. Products relying on a surface film for...

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Handbook - 9

What spcifie products do you recommend for schools? For high traffic. "hazardous" locations, that previously used wired glass, we recommend FireLite Plus*. It meets the CPSC 16 CFR1201 (Category II) impact requirements. The high impact laminating materials are sandwiched between two lites ofclear glass ceramic, so both exposed surfaces are durable. FireLite Plus can be eut with normal glass cuttlng tools, which means it can be delrvered quickly from school maintenance personnel or local glazing contractors. In non-impact rated areas. we recommend FireLite*. At only 3/16" thick, it easily...

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Handbook - 10

Aren't the newer fire-rated products more expensive? The initial investment for the newer, high performance glazing materials is greater than traditional wired glass. The old saying, "you get what you pay for" holds true: As with most things in life, the greater the level of performance desired, the greater the cost. But you should also consider the life of the product after it is installed. Schools are designed to last more than 30 years. As discussed, products with surface applied films will require more maintenance over that time. For fire-rated glazing, it's better to base your decision...

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Handbook - 11

Product Maximum fire rating Offers impact safety" Passes hose stream test Blocks heat transfer during fire Complies with energy codes Compatible with TGP framing Provides acoustic barrier Advantages/ Disadvantages Fireglass® 20 20 min. Օ + Moderate initial investment - Cannotwithstand thermal shock Pilkington Pyrodur8 20 min. Օ + Moderate initial investment - Cannotwithstand thermal shock Wired Glass 45 min. V//J 'UIl UUa Օ liiiA + Least expensive option - Institutional appearance - Low impact rsistance - Limited sizes WireLite8 45 min. 镕 + Moderate initial investment WireLite8 NT 90 min. Օ...

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All TGP catalogs and technical brochures

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