The main one you need to understand is when it is required to use Tempered safety glass. Exterior wood deck . 2018 IRC Section R311.3.1 restricts threshold height a required exit door in residences to 1 ½ inches from the top of the the threshold to the floor or landing on each side of the door. 6. 11. This process makes the glass stronger, and also changes the way the glass breaks. Means of Egress Doors in the IRC. Tempered glass is glass that has an extra proceedure done to it to make it 4 to 5 times stronger. The label must be permanently etched, fired, or embossed, on the glass or be a type that once applied cannot be removed without being destroyed. An egress window is a window defined by local building codes as large enough for entry and exit of a room in an emergency. 5. One of these requirements is having the right type of glass in the doors and windows of your home. Safety Glazing Required Locations: 1. Exposed glass edges shall be smooth. Glazing in railing in-fill panels shall be of an approved safety glazing material that conforms to the provisions of Section … As for a general understanding of these requirements, let us look at the 2015 International Residential Code (IRC) for what the minimum standards are. This comprehensive, stand-alone residential code establishes minimum regulations for one- and two-family dwellings and townhouses using prescriptive provisions. 5. Any glass that is within 24 inches of a doorway must be made of tempered glass if the bottom edge of the glass is 60 inches or less above the walking surface. Exception: An attached top rail or handrail is not required where the glass baluster panels are laminated glass with two or more glass plies of equal thickness and of the same glass type. Then, the glass is cooled quickly. Float, wired and patterned glass in louvered windows and jalousies shall be not thinner than nominal 3 / 16 inch (4.8 mm) and not longer than 48 inches (1219 mm). • 2006 International Residential Code for One- and Two-Family Dwellings. Glass type, condition, class, form, quality and finish as defined in ASTM C1036 must meet these standards and the modulus of rupture. According to the IRC, all glass panels in fixed, sliding, swinging, operable, or bifold doors should have tempered glass or laminated glass installed. *. While tempered glass is perfectly safe when properly used, it can pose hidden risks when used in fire-rated applications. The thickness and type of glass that is installed in the window a. annealed glass b. tempered glass c. laminated glass d. insulated glass e. insulated laminated glass Section G – Opening Protection Mitigation Techniques Resource Document This rule applies to: Certain windows that are … This tempered glass will crumble into small, rounded pieces if it is broken. Wired glass with wire exposed on longitudinal edges shall not be used in louvered windows or jalousies. First, tempered glass is extremely sensitive to high levels of thermal stress, or uneven heating or cooling. sand blasted, acid etched, ceramic fired, laser etched, or embossed). The glazing would need to be in the panel of the door, or if adjacent to the door (above or beside) then below 60" to be considered hazardous. 7. 2018 IRC Update 5/22/2019 5 2018 IRC Significant Changes to Deck Provisions 9 GENERAL REQUIREMENTS Permits –R105.2 Item 10 –A permit not required for a deck that meets ALL these requirements: • Not exceeding 200 ft2in area • Not more than 30 inches above grade at any point • Not attached to a dwelling • Not serving the egress door This alone should disqualify tempered glass from being used in any application that requires a fire-resistance rating. A factor of safety of 4 is specified by IRC to be used with the glass live loads shown previously. The tempered glass required in dangerous locations is different from the glass usually used in windows. Provisions for design loads of all exterior cladding of residential structures—including fenestration—are set forth in Section R301 of the 2018 IRC. Code Change Removes Sprinkler Tradeoff for Doors in Exit Enclosures and Passageways To repeat, nearly all of the modifications to Tables 716.3, 716.5 and 716.6 in the 2012 IBC are intended to clarify requirements and limitations on FRG in effect since the 2006 IBC. Skylights and sloped glazing are also subject to snow load and dead load. Fire department glass access panels shall be of tempered glass. The egress window must have a glass area of not less than 8% of the total floor area of room (s) for which it is servicing, to allow the minimum amount of sufficient natural light. The minimum egress window opening is 20" wide. Additionally, it is required to temper any glass located within 24″ of a door if … This factor of safety is used with the modulus of rupture of tempered glass which is taken to be 24 ksi → allowable stress for live loads = 6 ksi (41.4 MPa). The proceedure involves heating the glass up, and then cooling it down rapidly. 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