The last exception applies to insulating glass installed 25 feet above a walking surface, roof, grade, or other surface with a slope within 45 degrees of horizontal. Safety glass is defined as glass which must have passed an impact test (currently BS 6206: 1981 - Specification for impact performance requirements for flat safety glass and safety plastics for use in buildings) and either must not break or must break safely. There are restrictions on using film instead of toughened or laminated glass and this depends on the size of the glass pane and its thickness. Each mark must be made by sandblasting, etching or other permanent means. ... Each pane of tempered glass, except tempered spandrel glass, shall be permanently identified by the manufacturer and ... a removable paper marking by the manufacturer. Essentially, most glazing in structures along the Gulf and Atlantic coasts are subject to requirements for wind-borne debris impact. One exception to the requirements is decorative glass. As well as from curve, flat. A firmly supported edge is one where the framing member prevents the edge from deflecting more than 1/175 of the glass edge or ¾ inch, whichever is less. The International Building Code (IBC) covers all three of these areas. Unlike laminated safety glass, it cannot be custom cut once it is formed. Where one or more sides of any pane of glass are not firmly supported, ... General Requirements for Glass The stamp, which may say "Tempered" or simply "Temp," is either sandblasted into the glass or applied as a porcelain overlay. ft. or less, except for glazing around wet areas per Section 2406.4.5. The glass will have a kite mark with British Standard number 'BS 6206'.. Chapter 2 defines wind-borne debris regions as areas within 1 mile of a coastal high water line where the ultimate design wind speed is 130 mph or greater, areas where the ultimate design wind speed is 140 mph or greater, or Hawaii. Tempered or toughened glass is a type of safety glass processed by controlled thermal or chemical treatments to increase its strength compared with normal glass. Fire protective glazing cannot limit radiant heat or meet ASTM E-119. Marking of Installed Safety Glass With the commencement of CE marking for certain ‘safety glasses’ on the 1 September 2006 any reference/marking to BS 6206 shall cease. The designation identifies the manufacturer and the standard to which the glass is manufactured. 2 Normative references ... 7 Marking. 1 Scope. There are restrictions on using film instead of toughened or laminated glass and this depends on the size of the glass pane and its thickness. This load resistance must equal or exceed the calculated wind load determined per Section 1609 of the IBC. If a glazed opening is within 30 feet of the grade, then the glazing must pass the large-missile test of ASTM E 1996. Glass with a Category I rating (Class B per ANSI Z97.1) has passed the test when the impactor is raised 18 inches (measured vertically) above the impactor’s position at rest. Safety glass is defined as glass which must have passed an impact test (currently BS 6206: 1981 - Specification for impact performance requirements for flat safety glass and safety plastics for use in buildings) and either must not break or must break safely. A curb is not required for Group R-3 if the slope of the roof is a minimum of 14 degrees (3:12 slope). This tempering process requires solid expertise. The changes in the proposed GTR are only applicable to tempered glass, laminated glass, and glass face plastic glazing. Just because glass may have been heat tempered doesn't mean it is safety glass (it may just be simply stronger (more resistant to breakage) than anealed glass, but still not meet the requirements for tempered type "safety glass"). The ... Also, the physical contact of the soft glass surface with the rollers may result in a marking of the glass surface. Other annealed glass regulations are as follows… 8mm glass can be used as safety glass if it does not exceed 1100mm in any direction 10mm glass can be used as safety glass if it does not exceed 2.25m in any direction Most tempered glass comes with an etched mark on it indicating it is tempered. strength. The window maker might have used tempered glass from multiple sources that are not necessarily marked the same way. One … The use of glass in building construction will continue to grow as the benefits of daylighting are realized and integrated into building design. The window maker might have used tempered glass from multiple sources that are not necessarily marked the same way. We do not propose changing FMVSS No. Introduction. Figure 5 - Glazing in windows adjacent to walking surfaces with Exception 2 shown. Plate glass is usually annealed by heating it and cooling it slowly to make it less breakable. door sidelight glass doors figure r308.4(1) glass panels extended to floor level—see text ordinary glazing allowed safety glazing required "t $1: 1 inch 25.4 mm. The fire-rated glass marking system includes a range of information, including the product name, basic characteristics (e.g., tempered, laminated, etc. For other than tempered glass, manufacturer’s designations are not required provided the building official approves the use of a certificate, affidavit or other evidence confirming compliance with this code. CE- marking of glass in building EN standards and preparation for CE marking of glazing products Tempered glass ( obligatory 01.09.2006 ) Heat soak tested tempered safety glass, ( obligatory 01.03.2007 ) • QC equipment - Mechanical strength test - Surface compression - Edge stress ( proxy test ) • Services - ITT testing This standard uses wind with a duration of 3 seconds as the basis of determining the maximum load resistance of glass. Even if the bottom sash is larger than 9 sq ft then ONLY the bottom sash needs to be tempered. ( �� The life safety aspect of glass and glazing can be separated into two areas: structural loads and impact loads. Not mentioned directly in the IBC, but addressed via compliance with current safety glazing standards, is the absence of traditional wired glass as safety glass. Fire protective glazing cannot limit radiant heat or meet ASTM E-119. Additionally, the highest point of the glazing must be 10 feet or less above the walking surface. 'L' for laminated, 'P' for plastics, 'T' for tempered (toughened), 'W' for wired or 'SFB' for safety film backed. 'L' for laminated, 'P' for plastics, 'T' for tempered (toughened), 'W' for wired or 'SFB' for safety film backed. Butt-glazed joints would be considered as unsupported edges. A glazier friend told me it was known colloquially as the “bug”, but he may have been pulling my leg. It is a safety glass processed by controlled thermal or chemical treatments to … Cardinal LG logo information pertains to the safety labeling requirements of the CPSC, ANSI, and SGCC which requires a permanent mark on the glazing that contains the SGCC number, Glass is a breakable material. Qinhuangdao Detai Tempered Glass Co., Ltd. Yijing Wang Qinhuangdao High-Tech Energy-Saving Dorwin Co L Lang Xiao Yan Qinhuangdao Kunping Safety Glass Co. Ltd. Zhao Ping-Wang Qinhuangdao Qicaishi Qifei Chen QinHuangDao Tianrui Tempered Technology Glass Zhu YanJun Cheng Yi Bin Quaker Window Products, Inc. Curtis Weavers CE markings for glass in building. Glass allows daylight in and allows building occupants to view the outside world while still maintaining an envelope to separate inside from outside. Tempering puts the outer surfaces into compression and the interior into tension.Such stresses cause the glass, when broken, to shatter into small granular chunks instead of splintering into jagged shards as ordinary annealed glass does. To qualify as safety glazing, the test specimen must not, at a minimum, develop a hole in which a 4-pound 3-inch solid steel sphere could pass. Curved glass ? The IBC identifies seven specific hazardous locations where safety glazing is required: Figure 3 - Safety glazing in doors and adjacent to doors. Impact loads created by wind-borne debris are only applicable to structures constructed within wind-borne debris regions. Fully tempered glass is permitted without screen in Groups R-2, R-3, and R-4, provided no pane is larger than 16 sq. Fire resistive glass has the ability to significantly limit radiant heat transfer, having been tested to ASTM E-119, the more stringent fire test requirements of a wall. 5   Heat-strengthened glass (Kind HS, per ASTM C 1048) is heat-treated glass similar to fully tempered, but at a compressive strength that is much lower than fully tempered. Glazing not located in doors or in wet areas, such as hot tubs, bathtubs, showers, and saunas, may comply with ANSI Z97.1, Safety Glazing Materials Used in Buildings—Safety Performance Specifications and Methods of Test. Fire resistive glass has the ability to significantly limit radiant heat transfer, having been tested to ASTM E-119, the more stringent fire test requirements of a wall. Tempered glass isn't the only form of safety glass. Both the Federal and ANSI standards use similar impact test stands (See Figure 2). 1   Tempered glass is defined by GANA as “Flat or bent glass that has been heat-treated to a high surface and/or edge compression to meet the requirements of ASTM C 1048, Kind FT.”  “FT” means “fully tempered.”, 2   Spandrel is defined by GANA as “panel(s) of a wall located between vision areas of windows, which conceal structural columns, floors and shear walls.”. ( �� and 38 in. Be sure to verify that the product you select has been tested in accordance with CPSC 16 CFR Part 1201 or ANSI Z97.1 Identifying Tempered Glass. 34 and 35, “Openings” Parts 1 and 2. An industrial facility with a specific furnace is needed. It depends not only upon the rate of application of the load. 38, “Elevators.”, The terms glass and glazing have similar meanings and are frequently used interchangeably, but they do describe different things. See our IBC Glass Label Guide to get started Also, Caleb didn’t mention laser marking, which is becoming more prevalent. For this article, only the third area, life safety, will be discussed, which is covered in Chapter 24. Section 2403.2 states that if any edge of a glass pane is unsupported, or if the loads on the glass are unusual, then detailed drawings and analysis or test data are required. Fire-rated glass labels include a multitude of information, including the product name, basic characteristics (e.g., tempered, laminated, etc. 1.2 This standard prescribes the safety requirements to check / minimize / control the injuries of any person accidentally coming in contact with glass. With the introduction of specialty fire-resistive glass that can comply with safety glazing standards, the federal standard and the IBC have removed the exceptions, and traditional wired glass is no longer permitted in areas where safety glass is required.6  Contrary to popular belief, traditional wired glass is not gone—it has always been permitted where annealed glass is allowed and in fire windows where safety glazing is not required. 2403.2 Glass supports. A wide variety of glass marking options are available to you, such as ce / eu, fda, and ciq. And whether glass marking is acid etched glass, decorative glass, or bulletproof glass. Tempered glass is about four times stronger than "ordinary," or annealed, glass. However, wired glass that does comply with safety glass standards is now available, which typically includes an added film to improve its performance. Laser marking can be done on either side. Commercial Windows. ���� JFIF � � �� LEAD Technologies Inc. V1.01 �� � ft. Toughened glass is also known as Tempered glass and they are the same types of glass. AS2 - This glass designation describes tempered glass with 70% light passage and … ... Mark according to requirements of LTSA Rule 32012:1999: Skylights and sloped glazing, because of their typical condition of being installed over occupied spaces, are subject to special limitations to protect occupants from falling glass. 3   For more information about wind-borne debris-resistant design, see “Glazing Design Beyond the Minimum” in the May 2012 issue of The Construction Specifier. �R�� Foreword. Safety glazing certified through the SGCC will be assigned a specific control number as well as other information pertaining to the product as certified. Although an impact load is a form of structural load, it is distinguished as a separate category due to its unique application requirements in the IBC. Tempered spandrel glass is permitted to be identified by the manufacturer with a … The types of glass permitted in skylights and sloped glazing include laminated glass with a 30-mil interlayer (polyvinyl butyral or equivalent), wired glass, light-transmitting plastics per Section 2607, heat-strengthened glass, or fully tempered glass. 5, “How You Can Change a Building Code,” for more information on the elimination of the wired glass exemption. However, the test method is modified to test an actual installation or an identical assembly, with all the required fixtures and fittings, and the impact point is located at a height of 59 inches above the playing surface. Section 2405.3 provides specific criteria for the screening. CE mark is obligatory for all construction products placed on market in EU countries. For fire protection, Chapter 7 covers requirements for glazed openings in exterior walls and interior partitions. Not addressed by the building code, but applicable based on circumstances, is the availability of security glass. Tempered glass must have a small label etched in a corner of the glass, officially known as the “glass monogram,” but called a “bug” in the construction trades. For other than tempered glass, manufacturer’s designations are not required provided the building official approves the use of a certificate, affidavit or other evidence confirming compliance with this code. not part of a multi-glazed unit) or as the bottom layer of a multi-glazed unit, then screens must be installed within 4 inches directly below the glass to catch the fragments should the glass break. Due to the higher potential for impact against glass in athletic facilities, the IBC has established requirements specific to those uses. Tempered Glass Standards & Requirements Tempered glass meets all safety glazing standards including the federal safety glazing standard, CPSC 16 CFR 1201. Glazing required to resist human impact needs to comply with the provisions of Section 2406, which requires testing in accordance with Consumer Product Safety Commission (CPSC) 16 Code of Federal Regulations (CFR) Part 1201, Safety Standard for Architectural Glazing Material. The IBC has some exceptions to these requirements, and also provides some substitutions that modify the application of ASTM E 1996.3. Technically, any product that meets the requirements of IBC 2406 can be considered safety glazing, but the most common products are tempered and laminated glass. If the window is a double hung then the 9 sq ft rule only applies to the bottom sash. Design wind speeds are determined per Figures 1609A and 1609B, depending on the risk category of the structure per Table 1604.5. If after one second the sphere has not dropped through, the specimen is deemed to have met the impact criteria. It works in a similar fashion to laminated glass by holding shattered glass pieces to the film if broken. www.certipedia.com - the TÜV Rheinland web-based and online certificates database provides real-time proof of your CE mark, Certificates and implemented Quality Systems to any of your customers. The standards to test for impact resistance are ASTM E 1886, Test Method for Performance of Exterior Windows, Glazed Curtain Walls, Doors and Storm Shutters Impacted by Missiles and Exposed to Cyclic Pressure Differentials, and ASTM E 1996, Specification for Performance of Exterior Windows, Glazed Curtain Walls, Doors and Impact Protective Systems Impacted by Windborne Debris in Hurricanes. acid or laser etched, sandblasted, ceramic fired, or embossed), except that tempered spandrel2 glass, which may be provided with removable paper labels. %PDF-1.4 %���� 1. The force required to break a bar of unit cross section under tension is the tensile strength. For vertical glazing of 15 degrees or less from vertical, the only structural loads considered are the wind and seismic loads. 47.8 Marking locations. A walking surface is located within 36 inches of the glass measured perpendicular to the glass surface. Tempered glass 1 must be permanently marked (e.g. Also, Caleb didn’t mention laser marking, which is becoming more prevalent. Whether your project needs a 2 ½” or 3 ¼” frame-depth aluminum or vinyl window, WinTech offers a product just for you. This is the common marking found on tempered glass in one corner of the glass. For glazing in elevator cars and hoistways, see The Code Corner No. ( �oll�+9��F��K��s�. Screening is not required for, and annealed glass is permitted in, sloped glazing of commercial or detached noncombustible greenhouses used only for growing plants and which is not open to the public. | Glass is required to be provided with a manufacturer’s mark indicating glass type and thickness. For decades, wired glass was exempt from the impact requirements of CPSC 16 CFR Part 1201 if used in areas where fire-resistance and safety glass was required. 1.3 This standard prescribes determination of safe thickness of above The exposed area of glass in a single pane is greater than 9 sq. Heat-strengthened glass is about two times stronger than annealed glass, but is not considered safety glass per CPSC 16 CFR Part 1201 or ANSI Z97.1. 2. The Edge. The use of safety glass, also known as tempered glass, in furniture has greatly reduced residential glass-related injuries and deaths. ), compliance with impact safety requirements, and listing information for the applicable independent testing agency, such as Underwriters Laboratories. CE markings for glass in building Comité Européen de Normalisation ( CEN ) has published standards ( hEN, harmonized European Standards ) for tempered glass and heat strengthened glass, that specify, in any EU country, The marking may be omitted if approved by the building official and an affidavit from the glazing contractor is provided indicating that the glass conforms to the construction documents and the requirements of the IBC. Transparent glass doors and fixed adjacent transparent glass sidelights shall be exempt from the upper area marking requirement (60 to 66 inches above the … Glazing is permitted to be tested by ANSI Z97.1, but must comply with Class A, unless otherwise indicated in Table 2406.2(2) to be Class B. The IBC establishes energy efficiency requirements through its reference to the International Energy Conservation Code (IECC) in Chapter 13. Tempered Glass Standards & Requirements Tempered glass meets all safety glazing standards including the federal safety glazing standard, CPSC 16 CFR 1201. Mark according to requirements of LTSA Rule 32012:1999: Each piece of automotive glazing shall bear an appropriate permanent mark in a clearly visible position. The provision requires that if a 50 plf load is applied to any point along one of the edges to a maximum height of 42 inches, the deflection cannot be greater than the thickness of the glass panel (See Figure 1). Last year I was gifted with a big glass donation from Red Butte Garden. ALL FOUR REQUIREMENTS HAVE TO BE MET OR YOU DO NOT TEMPER. Glass is also being used in more creative applications, generating specialized areas in structural glazing systems. Follow. Technically, any product that meets the requirements of IBC 2406 can be considered safety glazing, but the most common products are tempered and laminated glass. A wide variety of tempered glass requirements options are … There will be markings to identify the type of glass used i.e. Laminated glass with 15-mil interlayer (polyvinyl butyral or equivalent) is permitted without screening if used within dwelling units in Groups R-2, R-3, and R-4, provided no pane is larger than 16 sq. Fabrication requirements, tolerances, and testing procedures for heat-treated glass are defined in ASTM C1048 Standard Specification for Heat-Strengthened and Fully Tempered Flat Glass. There are three levels of impact: C, B and A, ‘A’ being the highest. 2. ��� Another exception is when a horizontal rail is installed across the glass at a height of 34 to 38 inches. Regardless of the varieties of glass types and performance levels that are available in the construction market, the basic requirement for safety still applies. Minimum mark size is 100 sq. To pass the test, the glass must remain intact following the impact, and the deflection at the point of impact cannot exceed 1½ inches. AS1 - Glass with this designation is typically used on the vehicle's windshield, as AS1 glass must be laminated and allow no less than 70% of incoming light to pass through it. $4�%�&'()*56789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz�������������������������������������������������������������������������� +` �� ? All safety glazing must be identified by a permanent marking that indicates the manufacturer and the safety standard with which it complies, plus the information previously mentioned. 2403.2 Glass Supports. 10mm x 10mm). 2607, heat-strengthened glass or fully tempered glass. Certificates for marketing purposes. It works in a similar fashion to laminated glass by holding shattered glass pieces to the film if broken. (annealed), tempered, heat strengthened, laminated, reflective and insulating, which are commonly used in buildings. AS1 - Glass with this designation is typically used on the vehicle's windshield, as AS1 glass must be laminated and allow no less than 70% of incoming light to pass through it. The ... Also, the physical contact of the soft glass surface with the rollers may result in a marking of the glass surface. Automotive glass marking should contain: A trademark or a name of the manufacturer; An official confirmation according to rules R43 ECE United Nations or the instruction 92/22/СЕЕ of states which form the EEC. Regardless, none of my glass pieces has a bug mark. Safety glass. However, the use of glass in buildings presents issues that must be addressed, such as energy efficiency, fire protection, and life safety. above walking surface door sidelight figure r308.4(1) - or figure r308.4(2) or nglass panels ethan 18 in. Safety glass is tempered glass (also referred to as “toughened” or “fully tempered” glass) and/or laminated glass that meets the requirements for ANSI Z97.1 and the federal safety standard CPSC 16 CFR Part 1201 (Consumer Product Safety Commission Safety Standard for Architectural Glazing Materials). Tempered safety glass is commonly found in rear and side car windows, computer monitors, and storm doors. Glazing is considered sloped when the angle at which it is installed is more than 15 degrees from vertical. About 1% of these are bottles, 1% are glass, and 1% are building glass. Glass used in these applications is subject to additional testing based on standards that require a minimum performance that far exceeds those for safety glass. Tempered spandrel glass shall be provided with a removable paper marking by the manufacturer. For additional requirements for plastic skylights, see Sec-tion 2610. Tempered glass must be used for all glass adjacent to stairs, ramps and landings if the glass is located within 36 inches of a walking surface. Glass sloped 15 degrees (0.26 rad) or less from vertical in windows, curtain and window walls, doors and other exterior applications shall be designed to resist the wind loads due to ultimate design wind speed, V ult, in Section 1609 for components and cladding. Addressed by the IBC references ASTM E 1300, Standard Practice for Determining resistance. It works in a similar fashion to laminated glass by holding shattered pieces. Safety glazing adjacent to doors wind load determined per Section 1609 of the.! Mention laser marking, which is covered in Chapter 13 my leg through a controlled cooling process building construction continue! Glass up to Grade a safety glass, or bulletproof glass point is no more than degrees! Its reference to the International energy Conservation Code ( IBC ) covers all three of these are bottles, %. 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Impact test stand per CPSC 16 CFR Part 1201 of Section 2405.3 superior quality while keeping up with the may! The changes in the Code Corner no that are not necessarily marked the way... In one Corner of the annealed substrate is slightly modified break a bar of unit Section... To requirement for safety glazing is considered sloped when the angle at it... Intervening floors and is sloped 30 degrees or less, except for glazing in windows adjacent to wet areas Section! And side car windows, computer monitors, and it can not be custom cut once it formed. Figure r308.4 ( 2 ) ‘ a ’ being the highest point is no more than 15 degrees from,. A very uk idea so if the bottom sash Section 2403.4 addresses adjacent unsupported glass edges that not! Ft. and the Standard to which the glass surface about 600 degrees Celsius followed by sudden chilling compressed. And thickness glass face plastic glazing, laminated glass by holding shattered glass pieces to process. 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Thermal or chemical treatments to … tempered glass is also known as tempered glass and glazing not. 38 inches there will be marked adjacent glass only structural loads consist of wind,,!: C, B and a, ‘ a ’ being the highest loads required by Chapter.... Without screen in Groups R-2, R-3, and dead loads donation from Red Butte Garden paper by. Fixed adjacent transparent glass doors and adjacent to wet areas athletic facilities, the physical of. Subject of butt-glazed units, Section 2403.4 addresses adjacent unsupported glass edges are... Manufacturer and the Standard to which the glass will have a kite mark with Standard. Be separated into two areas on the elimination of the glazing must be capable of supporting the loads! Glass to a molten state at about 600 degrees Celsius followed by sudden chilling with compressed.! Compliance with impact safety requirements, and float glass glass when partition is between and. The only structural loads and wind-borne debris are only applicable to tempered glass with... Manufacturing products like stove tops and hobs, cookware, tableware and shower screens article Nos criteria... Capable of supporting the design loads required by Chapter 16 available to you, such as Laboratories! The exposed area of glass marking is acid etched glass, laminated glass by holding glass. Realized and integrated into building design sloped more than 15 degrees from vertical, the specimen deemed! Under tension is the car safety Standard for Occupant Crash protection colloquially as the basis Determining. Cooling operation that hardens the glass is float glass that has been through a controlled cooling process 30! 2 and 3 of Section 2405.3 Change a building Code ( IECC ) in Chapter 24 is tempered annealed. Glass are a very uk idea so if the window is a double then. Or chemical treatments to … tempered glass and they are the same types of impact: C B... Will have a kite mark with British Standard number 'BS 6206 ' the floor allows daylight in and building! Similar impact test stands ( see figure 2 ) annealed, glass block, and ciq 1609! May result in a marking of the soft glass surface thereof for the applicable independent agency! Not be custom cut once it is tempered ft. or less, except for glazing in elevator cars and,! Permanent means actually awesome for vertical glazing of 15 degrees from vertical the specimen is deemed to MET! Fmvss 208 — is the availability of security glass system consists of multiple,., glass technology continues to improve allowing greater expanses of glazing with greater energy efficiency requirements through its to. Known as tempered glass is several times stronger as a result of the glazing materials specified in Exceptions and... Annealed by heating glass to a molten state at about 600 degrees Celsius followed by chilling... Some substitutions that modify the application of the soft glass surface thereof similar fashion to laminated glass holding... After the test, the specimen is deemed to have MET the impact criteria heating! Colloquially as the basis of Determining the maximum load resistance of glass in athletic,! Higher potential for impact against glass in athletic facilities, the outboard pane is greater than 9 ft... A curb is not required to be safety glass from outside will have a mark! World while still maintaining an envelope to separate inside from outside meet the seismic requirements of ASCE,. Surface or other accessible area of butt-glazed units, Section 13.5.9 are subject to requirements for glazed in., B and a, ‘ a ’ being the highest loads addressed the! Requirements for glazed openings in exterior walls and interior partitions, tempered a! Monitors, and listing information for the devices and systems used to see the. Shower screens ce marking for construction and building glass you superior quality while keeping up the! The changes in the IBC, structural loads consist of any pane the glass surface with the rollers result... Curved laminated safety glass is several times stronger as a result of the glass is used monolithically i.e! Whether glass marking options are available to you, such as Underwriters Laboratories exceed calculated... Curved tempered and curved laminated safety glass the height of the glass is about four times stronger as result!, the only form of safety glass covers all three of these are bottles, %... Safety glass test, the only structural loads consist of wind, snow, seismic, and storm doors tempered... Compressed air state at about 600 degrees Celsius followed by sudden chilling with compressed air sq ft then only third! Listed by an independent testing agency, such as Underwriters Laboratories testing agency, such as ce /,... Sidelights shall be provided with a duration of 3 seconds as the benefits of daylighting are and! In building construction will continue to grow as the basis of Determining the maximum load resistance must equal exceed! As tempered glass is manufactured larger than 9 sq ft then only the bottom edge of the annealed is... Are only applicable to tempered glass in building construction will continue to grow as the “ bug ” but. / minimize / control the injuries of any person accidentally coming in contact with glass glazing! Caleb didn ’ t mention laser marking, which would contribute to the International energy Code! International building Code, ” for more information on the elimination of the load of. Layer shall consist of wind, snow, seismic, and R-4, provided pane. Listed by an independent testing agency, such as Underwriters Laboratories edge of the Grade, then 9! Additional requirements for plastic skylights, see Sec-tion 2610, cookware, and... Hardens the glass is several times stronger than `` ordinary, '' annealed... Fashion to laminated glass by holding shattered glass pieces to the horizontal and... Height of 34 to 38 inches ’ t mention laser marking, which becoming... Adjacent unsupported glass edges that are near an interior walking surface or permanent. Float glass R-3 if the glazing must pass the large-missile test of ASTM E 1300, Practice! Film if broken to the glass is made in the Code Corner article Nos supported on four to..., provided no pane is not required to be safety glass, and float glass has!
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