Multi-pane glazed assemblies having individual panes not exceeding 1 square foot (0.09 m. The following shall be considered specific hazardous locations requiring safety glazing materials: Fire department glass access panels shall be of tempered glass. If you need assistance, please contact the Office of Public Safety and Inspections. Windows that conform to 120 mph wind loading will satisfy tempered glass requirements. The pass/fail criterion for swinging doors remains at 0.5 cfm per square foot. Also, you will get some other requirements. Mass.gov is a registered service mark of the Commonwealth of Massachusetts. What is the Minimum Size for a Shower Door? Short duration load on the glass as determined in accordance with ASTM E1300. The glass in glass elevator car doors shall be not less than 60 percent of the total visible door panel surface area as seen from the car side of the doors. The design of vertical glazing shall be based on the following equation: Glass sloped more than 15 degrees (0.26 rad) from vertical in skylights. thick weighs roughly 13 lb.). Toughened Glass are also known as Tempered Glass, so you already noticed that both names are usually used for the same type of glass. The bottom edge of the glazing is less than 18 inches (457 mm) above the floor. Approved plastics that meet the ANSI Z97.1 Standard are another form of safety glazing. Maximum load on the skylight determined from Equation 24-2. You cannot cut a tempered glass directly. Chapter 23: Wood. 1. Also, if you try to cut tempered glass with a glass-cutter when you will put pressure, there is a high chance to create scattered pieces instead of sharp two parts. Where one or more sides of any pane of glass are not firmly supported, or are subjected to unusual load conditions, detailed, To be considered firmly supported, the framing members for each individual pane of glass shall be designed so the deflection of the edge of the glass perpendicular to the glass pane shall not exceed, Where interior glazing is installed adjacent to a walking surface, the differential deflection of two adjacent unsupported edges shall be not greater than the thickness of the, Float, wired and patterned glass in louvered windows and jalousies shall be no thinner than, Glass sloped 15 degrees (0.26 rad) or less from vertical in windows, curtain and window. 2.13 Glazing Accessories. The screens shall be constructed of a noncombustible material not thinner than No. Tempered glass doors without stiles and having a bottom rail or shoe with the top leading edge tapered at 60 degrees minimum from the horizontal shall not be required to meet the 10 inch (255 mm) bottom smooth surface height requirement. The following words and terms shall, for the purposes of this chapter and as used elsewhere in this code, have the meanings shown herein. For the outdoor areas of a hot tub, there must be the tempered glass if the glass bottom is less than 60 inches overhead the walkway and not more than 60 inches of the water edge. Replacement with tempered glass or safety glass is . Glazing in doors and enclosures for hot tubs, whirlpools, saunas, steam rooms, bathtubs and showers. Per Section R308.4.2 the next hazardous location that we find is glass located adjacent to doors. At what height do windows need to be tempered? the glass and have a cross-sectional height of not less than 11/2 inches (38 mm). Please limit your input to 500 characters. Where the glazing is within 24 inches of either side of the door in the plane of the door in a closed position. The shower's minimum size is 3030 inches or 900 square inches, where the disk should fit 30 inches in diameter. This section however has 2 exceptions that will not require the glass to be tempered. In addition, any glass . - Ed Beal. 3.1 Glazing General Requirements. So, following the proper the the Building Code Requirements for Tempered Glass requirements is a must here. Each pane of tempered glass, except tempered spandrel glass, shall be permanently identified by the manufacturer. If you would like to continue helping us improve Mass.gov, join our user panel to test new features for the site. Safety glass should be found in locations considered to be, according to the 2006 version of the International Residential Code (IRC), "subject to human impact." It describes these locations, as well as their exceptions, in Glass installed in hoistways and hoistway doors where the hoistway is required to have a. Glass installed in exterior railing in-fill panels or balusters shall be laminated glass complying with Category II of CPSC 16 CFR 1201 or Class A of ANSI Z97.1. The size of the glass exceeds 9 square feet. 3) specifies that tempered (safety) glass is needed if all these conditions exist: The exposed area of an individual pane is greater than 9 square feet (0.84 m2). Glass doors shall remain intact following a test impact at the prescribed height in the center of the door. 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. Tempered spandrel glass is permitted to be identified by the manufacturer with a removable paper designation 2406.3.1 Multi-pane . Tempered glass is a must for all of the glass adjacent to stairs, landings, and ramps. Where required by other sections of this code, glazing shall be tested in accordance with CPSC 16 CFR 1201. Glazing in this application shall comply with Section R308.4.3. But where are these hazardous locations around your home? Nonfactored load in accordance with ASTM E1300. One example of this can be stained glass located within a door. Code standards are often mistakenly thought of as the best standards, even though building code . If your piece of glass is marked like this, then your search is over and you can be certain that your piece of glass is tempered. Chapter 7A requires one of the panes in all dual pane windows to be tempered. Ceramic, Annealed, Tempered, Laminated those are just a few of many, many different options. The key here is when glass is located in walls, enclosures or fences facing all of the wet locations listed above, it must be tempered where the bottom edge of the glass is located less than 60 inches vertically from the floor. Where other glass types are used, the design shall be submitted to the, Glass sloped 15 degrees (0.26 rad) or less from vertical in windows, curtain and window. (I need to cut a hole). Something important to note here is that this only pertains to glazing adjacent to doors that are subject to this section. This section however has 4 exceptions that will not require the glass to be tempered. Commercial refrigerated cabinet glazed doors. Therefore, it qualifies as a safety glazing material. If you are planning for any construction, knowing the Building Code Requirements for Tempered Glass is a must. 2. The glass is tested to the acceptance criteria for laminated glass as specified for Class A in accordance with ANSI Z97.l or Category II in accordance with CPSC 16 CFR. Make sure that the size of your bathroom window exceeds nine square feet. The value for sandblasted glass is for moderate levels of sandblasting. The building codes demand a higher standard. grade, a roof, walking surfaces or other horizontal [within 45 degrees (0.79 rad) of horizontal] surface adjacent How Do I Know If My Glass is Toughened/Tempered Safety Glass? When it comes to glass located adjacent to stairs or ramps, Section R308.4.6 reads as follows: Glazing where the bottom exposed edge of the glazing is less than 36 inches above the plane of the adjacent walking surface of stairways, landings between flights of stairs and ramps shall be considered to be a hazardous location. Glazing in guards and railings, including structural baluster panels and nonstructural in-fill panels, regardless of area or height above a walking surface shall be considered to be a hazardous location. Secure shatterproof function, will not be broken into small pieces of sharp. How does a contractor determine the water performance rating needed for a sliding glass door? The identification. The top edge of the glazing is more than 36 inches (914 mm) above the floor; and. MA State Building Code, 9 th ed, Base Volume. Adding another light switch to the bathroom, View the Glass Through Polarized Lenses. June 10, 2022 . 1. 2.9 Spandrel Glass. Second, glass that is located perpendicular, or less that 180 degrees, from the plane of a closed door and within 24 inches of the hinge side of an in-swinging door must be tempered. Glass doors shall remain intact following a test impact at the prescribed height in the center of the door. Chapter 25: Gypsum Board and Plaster. If a window does not need to be tempered because it is located such that the conditions of Section R308.4.2 are not met but based on the windows size and placement meets the conditions of Section R308.4.3, then the window must still be tempered. The top of the glass is less than 36 inches above the floor. Any door. Where required by other sections of this code, glazing shall be tested in accordance with CPSC 16 CFR 1201. . Get tempered glass sheets for your shower enclosures, glass walls, or room dividers. If the glass baluster panels are laminated with 2 or more glass piles that are equal in thickness and of the same glass type, then they are not required to have the top rail or handrail installed. Tempered glass appears more often and can be found in storm doors, skylights, sliding glass doors, and unsafe locations. The code requires that windows be labeled in a manner to determine that they meet the IECC's air infiltration requirements; specifically, equal to or better than 0.30 cfm per square foot of window area (swinging doors below 0.50 cfm) as determined in accordance with AAMA/WDMA 101/I.S.2 (ASTM E 283). 3. Bathroom window safety glass is required if the bottom edge of the window is within 60" from the tub or shower standing surface. Where a horizontal rail is installed on the accessible side(s) of the glazing 34 to 38 inches (864 to 965 mm) above the walking surface. All doors are considered a hazardous location and must have safety/tempered glass with just a couple of exceptions for small glass panels in . Limitations on its acceptable use arise from fire resistance ratings. Does it make sense to try mounting the jigsaw onto the table? 2. Tempered glass is very expensive and removing old glass is extremely time-consuming. In the above code section we saw that when the bottom edge of the glass is located less than 60 inches vertically above the floor, it must be tempered. Anything within 2 of a door on the hinge side. From $760.00 $1,639.96. So, it is advisable to precisely measure the required size of tempered glass that you want to install. Maximum load on the skylight determined from Equations 24-2 through 24-4 in, For monolithic glazing systems, the glazing material of the single light or layer shall be laminated glass with a minimum 30-mil (0.76 mm) polyvinyl butyral (or equivalent) interlayer, wired glass, light-transmitting plastic materials meeting the requirements of. This shall apply to single glazing and each pane in multiple glazing. Section 2403 General Requirements for Glass, Section 2404 Wind, Snow, Seismic and Dead Loads on Glass, 2404.3 Wired, Patterned and Sandblasted Glass, Section 2405 Sloped Glazing and Skylights, 2405.2 Allowable Glazing Materials and Limitations, 2405.5.1 Unit Skylights Rated for the Same Performance Grade for Both Positive and Negative Design Pressure, 2405.5.2 Unit Skylights Rated for Separate Performance Grades for Positive and Negative Design Pressure. Building Codes for Tempered Glass Close To Stairs. 2018 International Building Code (2406.4. 3. If you maintain the entire building code requirements for glass properly, there will be a high chance to prevent injuries and accidental deaths. One or more walking surface(s) are within 36 inches (914 mm), measured horizontally and in a straight line, of the plane of the glazing. The screens and their fastenings shall: (1) be capable of supporting twice the weight of the glazing; (2) be firmly and substantially fastened to the framing members and (3) be installed within 4 inches (102 mm) of the glass. This applies to both single and multiple glazing. There IS wired glass that is impact-resistant (although the vast majority of the existing wired glass is NOT), so we need to know how to tell the difference. You can also choose bronze or gray tempered glass when you are customizing your glass. Glazing shall comply with the test criteria for Category I or II as indicated in Table 2406.2(1). The film (4 mil) can be professionally applied for $75 for the four windows. Glazing adjacent to the landing at the bottom of a stairway where the glazing is less than 36 inches above the landing and within a 60-inch horizontal arc less than 180 degrees from the bottom tread nosing shall be considered to be a hazardous location. Finally glazing that is adjacent to the fixed panel of a patio door is not required to be tempered. 1. Chapter 3 Use and Occupancy Classification, Chapter 4 Special Detailed Requirements Based on Use and Occupancy, Chapter 5 General Building Heights and Areas, Chapter 7 Fire and Smoke Protection Features, Chapter 15 Roof Assemblies and Rooftop Structures, 2404 Wind, Snow, Seismic and Dead Loads on Glass, 2409 Glass in Walkways, Elevator Hoistways and Elevator Cars, Chapter 25 Gypsum Board, Gypsum Panel Products and Plaster, Chapter 30 Elevators and Conveying Systems, Chapter 32 Encroachments Into the Public Right-of-Way, Chapter 33 Safeguards During Construction, Appendix C Group UAgricultural Buildings, Appendix E Supplementary Accessibility Requirements, Appendix G Flood-Resistant Construction in Coastal Dunes, Appendix L Earthquake Recording Instrumentation, Appendix M Tsunami-Generated Flood Hazard, The provisions of this chapter shall govern the materials, design, construction and quality of glass, light-transmitting ceramic and light-transmitting plastic. Pick the right choice to live with an elegant interior. McGrory Glass, Inc. Paulsboro, NJ 800-220-3749. The rail shall be capable of withstanding a horizontal load of 50 pounds per linear foot without contacting the glass and have a cross-sectional height of not less than 1-1/2 inches. For glass sloped more than 30 degrees (0.52 rad) from horizontal. 5.2. For the second exception if a horizontal rail is provided along the walking surface adjacent to the glass that is located between 34 to 38 inches above the floor, then the glass is not required to be tempered. Annealed glass is permitted to be used as specified within Exceptions 2 and 3 of, For additional requirements for plastic skylights, see, Where used in monolithic glazing systems, heat-strengthened glass and fully tempered glass shall have screens installed below the glazing material. Glazing in an individual fixed or operable panel, other than in those locations described in preceding Items 5 and 6, which meets all of the following conditions: Exposed area of an individual pane greater than 9 square feet (0.84 m. Exposed bottom edge less than 18 inches (457 mm) above the floor; Exposed top edge greater than 36 inches (914 mm) above the floor; and. Tempered glass is hardened glass reaching strengths of up to 4 times normal glass. Tempered glass varieties can be classified into flat toughened glass and curved toughened glass according to their shapes. The design of skylights shall be based on Equation 24-13. The relative deflection between the edge of a glass door and the adjacent, The glass is bonded to a nonpolymeric coating, sheeting or film. A .mass.gov website belongs to an official government organization in Massachusetts. 2. 2. Total load on the glass as determined by Equations 24-2, 24-3 and 24-4. Glazing materials used as curved glazed panels in revolving doors. This is similar to the requirements in the 2015 IECC and IRC, but the user should recognize that both standards were updated to 2017 editions in the 2018 IECC. Where can I find an old work ceiling box for armored cable? We have various shapes and shades of tints. You can customize the size, shape, thickness, and edge types of your glass. Where one or more sides of any pane of glass are not firmly supported, or are subjected to unusual load conditions, detailed, To be considered firmly supported, the framing members for each individual pane of glass shall be designed so the deflection of the edge of the glass perpendicular to the glass pane shall not exceed. When glass is adjacent to a stairway, stair landing, or ramp, and where the bottom of the glass is located less than 36 inches above the walking surface of these features, then it is required to be tempered. Glazing in fixed and operable panels of swinging, sliding and bifold doors shall be considered to be a hazardous location. It is the safest glass to use in your home or commercial area. The condition for tempered glass is if you place the glass within 36 inches of the surface of walking, and the visible glass surface is within 60 inches overhead any walkway. Currently, building code requires tempered glass for windows in or immediately adjacent to doors, and in windows that are 18 or less from a floor. If the window is bigger than 9 square feet, you will have to use tempered glass for it. You should know the different building code requirements for tempered glass [when should you use]. There are two exceptions found in this section. Yes, its required. There are some rules and regulations to maintain for safety issues however. The most common type of safety glass is tempered glass, which is made by heating pre-cut panels of glass to about 650 C (1200 F), then cooling them rapidly through a process called 'quenching.' By cooling the outer surfaces of the panel more quickly than the center, quenching puts the surfaces and edges of the glass in compression and the . 2. . Copyright 2023 Building Code Trainer, All rights reserved. A bathroom window must be made of tempered glass if all the following criteria are met, according to the National Glass Association: The glazing ( glass) is less than 18 inches above the floor. The next exception is for glazing adjacent to doors that serve a closet or storage area that is 3 feet or less in depth. Please remove any contact information or personal data from your feedback. The bottom edge of the glazing is less than 18 inches (457 mm) above the floor. For example, there are some requirements for ensuring the glass authentication, a proper size for any specific place, thickness, and so on. Section R311.2 states the width of the clear opening of the required egress door must be . Glass sloped more than 15 degrees (0.26 rad) from vertical in skylights, Wired glass sloped 15 degrees (0.26 rad) or less from vertical in windows, curtain and window, Wired glass sloped more than 15 degrees (0.26 rad) from vertical in skylights, sunspaces, sloped roofs and other exterior applications shall be designed to resist the most critical of the combinations of, Patterned glass sloped 15 degrees (0.26 rad) or less from vertical in windows, curtain and window, Patterned glass sloped more than 15 degrees (0.26 rad) from vertical in skylights, sunspaces, sloped roofs and other exterior applications shall be designed to resist the most critical of the combinations of, Sandblasted glass sloped 15 degrees (0.26 rad) or less from vertical in windows, curtain and window, For designs outside the scope of this section, an analysis or test data for the specific installation shall be prepared by a, This section applies to the installation of glass and other transparent, translucent or opaque glazing material installed at a slope more than 15 degrees (0.26 rad) from the vertical plane, including glazing materials in skylights, roofs and sloped. There are also four exception allowed, as noted below in the citation from the Residential edition of the Florida Building Code (FBC), and the . Well, I was off by a factor of 3! Section R308.4 of the 2006 IRC specifies 11 different "hazardous locations" where safety glass is required; relevant to deck building are glazed areas near walking surfaces, stairways, doors, and hot tubs. Generally, the thickness of flat tempered glass is 3.4, 4.5, 5, 5.5, 6, 7.6., 8, 9.2, 11, 12, 15 and 19mm; the thickness of curved tempered glass is 3.4, 4.5, 5.5, 7.6, 9.2, 11, 15 and 19mm. Where access through the door is to a closet or storage. The window must be tempered if the pane of glass is larger than 9 square feet, the bottom edge located less than 18 inches above the floor, the top edge located more than 36 inches above the floor, and has a walking surface located within 36 inches from the window. 2.7 Clear Tempered Safety Glass. Tempered glass manufacturers are usually required to stamp the glass with the word "Tempered" or "Temp". It is a tricky one and risky as well. Make sure the glass is less than 18 inches above the floor. Why do they put an A/C vent in the utility room? Chapter 7: Fire and Smoke Protection Features, Chapter 15: Roof Assemblies and Rooftop Structures, Chapter 17: Structural Tests and Special Inspections, Chapter 30: Elevator and Conveying Systems, Chapter 32: Encroachments to the Public Right-of-Way, Chapter 33: Safeguards During Construction, contact the Office of Public Safety and Inspections. We will use this information to improve this page. Where access through the door is to a closet or storage area 3 feet (914 mm) or less in depth. 3M Safety Window Films can help you quickly and easily meet . Per the International Residential Code, all glass or panels in fixed, operable, swinging, sliding and bifold doors must be constructed from safety glass, regardless of size. It is not an official statement of the regulations. Some page levels are currently hidden. To avoid the further hassle, better to get the proper sized tempered glass and then try for an installation. Fully tempered glass installed without protective screens where glazed between intervening floors at a slope of 30 degrees (0.52 rad) or less from the vertical plane shall have the highest point of the glass 10 feet (3048 mm) or less above the walking surface. For multiple-layer glazing systems, each light or layer shall consist of any of the glazing materials specified in Item 1 above. Glass installed in hoistways and hoistway doors where the hoistway is required to have a, The glass in glass hoistway doors shall be not less than 60 percent of the total visible door. Section R308.4.7 covers glass located adjacent to the bottom of stair landings. Building code requirements provide you the guidelines on where to install a certain type of glass. If youre still confused to tell when we called a glass is fully tempered or not? The bottom edge of the glazing is less than 18 inches (457 mm) above the floor; and. Glazing in fixed and sliding panels of sliding door assemblies and panels in sliding and bifold closet door assemblies. The installation of replacement glass shall be as required for new installations. when is tempered glass required by code massachusetts. ofthe stairs per item #11. The prior section we looked at had to do with glass adjacent to stairs however this section singles out the bottom of the stair landing as a separate section. So, glass for the bathroom and the hot tub or sauna should be safety glass. The exception is if it is more than 60 above the floor; so a window above a door (a transom), often does not need to be safety glazed. The glass is within 36 inches of where . The code requires a windows to tempered when it meets all of the 4 conditions above. Any other exterior door has a threshold height limited to 7 inches. When it shatters it disintegrates into harmless pieces unlike normal glass that becomes a safety hazard due to the sharp pointed pieces that are a result of shattering. 3. However, you cannot just buy and install glass in your place. 12 B&S gage (0.0808 inch) with mesh not larger than 1 inch by 1 inch (25 mm by 25 mm). Tempered spandrel glass shall be provided with a removable paper marking by the manufacturer. We will cover glass in windows themselves next. The screens and their fastenings shall: (1) be capable of supporting twice the weight of the glazing; (2) be firmly and substantially fastened to the framing members and (3) be installed within 4 inches (102 mm) of the glass. You will get some deep knowledge about the building code requirements for the tempered glass in the following sections.