In cases where it is impracticable to provide nuts and lock washers, the metal frame shall be reinforced with a 3/8-inch thick plate, 6 inches long, tapped to receive both attaching bolts which shall extend through the reinforcing plate. (Title 24, Part 2, Section 2-8502(a)1. According to the 2018 IRC, all windows that are more than 6 feet above the grade outside the window must have a bottom opening a minimum of 24 inches above the room's interior floor. 0000035504 00000 n Drive-through aisles shall have a minimum 10-foot interior radius at curves and a minimum 12-foot width. The horizontal area of the window well shall be not less than 9 square feet (0.9 m2), with a horizontal projection and width of not less than 36 inches (914 mm). DG,#*dc(O/(JcZl$,U"|_'4/X`q>H 60#F,@fL)W"a2 fpS~\Ws~ V#.iJk\%n/rrAM`D`,@p}-nf(9~PutmJ R&m6 >,S66VRd\sLJ4u2. For a better experience, please enable JavaScript in your browser before proceeding. NOTE: Authority cited: Section 142.3, Labor Code. The Caribbean Community and Common Market (CARICOM: 15 Carribean counties) use the IBC, IMC, IPC and IECC as base documents for that regions regulations. The 24-inch sill height is typically above a small child's center of gravity, reducing the likelihood of the child's toppling over the sill. Similar to egress windows, the minimum sill height is not required for all windows but for windows that meet certain conditions that would require fall protection. %%EOF Fun Tip:To learn the difference between the International Residential Code (IRC) verses the International Building Code (IBC), be sure to check out thisPOST. (f) Only employees who have been properly trained to handle such equipment shall be assigned to work from scaffolds or boatswain's chairs. Bearing studs. The window is provided with a window opening control device that complies with Section R312.2.2. (C) 1. The minimum window-sill height requirements are intended to reduce the number of injuries from falls by children through open windows. Lets take a look at when it is necessary to comply with this section and how you can achieve compliance. We Recommend Home Hacks & Answers Ohio Building Codes for Adding Egress Windows Home Hacks & Answers Height of Kitchen Windows Home Hacks & Answers The family of International Codes published by the International Code Council is the most widely used in the history of U.S. construction codes. I am not trying to extend the application of this code to cover type 'E' occupancies. 29). (In other words, an enclosed porch 5 feet wide will never qualify.) Redesignation of former subsection (p)(1) to new subsection (p)(1)(A), new 0000019491 00000 n 0000001874 00000 n In Climate Zones 5 to 8 (Ohio to Alaska) it was reduced from 0.32 to 0.30. Numerous federal agencies have also adopted the International Codes. 0000024311 00000 n For skylights and sloped glazing, however, other factors used to calculate design wind pressure were increased. Owners of buildings 36 feet or more in height shall have an Operating Procedures Outline Sheet (OPOS) where one or more of the following conditions apply to such buildings: A. General Industry Safety Orders, https://www.dir.ca.gov/od_pub/disclaimer.html. 41). The 2018 IRC glazing requirements remain mostly unchanged, but for modifications addressing glazing adjacent to doors, in guards and railings, and adjacent to the bottom stair landing. Anchors shall be attached to the side frames of the window or to the building at a point no less than 42 inches nor more than 51 inches above the window sill. Has anyone had a window above tub and been approved ? R310.2.3 Window wells. ft. for grade floor or below grade openings). The bolts shall be a minimum of 3/8-inch in diameter and shall pass through a solid section of the window construction. 1) For the purposes of compliance with the standard referenced in Clause 9.7.4.2. ft. (5.0 sq. The prescriptive path for residential construction establishes maximum permitted U-factor and solar heat gain coefficient (SHGC) requirements for fenestration (Table R402.1.2). 4. 0000003860 00000 n Building Code, 2019 California Residential Code, and 2019 California Energy Efficiency Standards. Reference: Section 142.3, Labor Code; and Section 18943(c), Health and Safety Code. That means we can provide a window opening area of around 15 % of the room area. (3) Concrete. As the last two options are somewhat similar, the first option is more of a permanent solution such as a rail system for example. If the glass of a door is within 24 inches, it is necessary to use tempered glass. The replacement window is the manufacturer's largest standard size window that will fit within the . % Minimum net 24" clear height when open . This protects the kitchen from insects, car fumes, dust and high temperature. The 2018 IECC permits glazing in thermally isolated sunrooms to have a maximum U-factor of 0.45 in climate zones 2 to 8. Tempered glass would be required if the window glass was within a certain distance . ft. The minimum net clear openable height dimension shall be 24 inches. 0000032841 00000 n In some cases, this increase results in a higher design wind pressure. If testing is the method used to determine structural adequacy of mullions, it is to be done in accordance with AAMA 450-10, Voluntary Performance Rating Method for Mulled Fenestration Assemblies. 3. In mid-level climates zones 4 and 5 (Northern Tennessee to Southern Wisconsin), the U-factor is not to exceed 0.48. In the options noted above, the code requires these protection devices to comply with ASTM F2090. 3. Under the 2018 IECC and IRC, sunrooms that are open to the rest of a building can be built as an addition, or part of new construction, but they must meet the same requirements for energy efficiency as the rest of the home. This bulletin can be downloaded from the AAMA online store, aamanet.org/store. The UA (area weighted average) alternate method, 3. :J.RmZ3knF:} 62W[_(h(m(=6YztF{..6ce? 11i&H u}7KDo2PSwSk%@VHxB%@O(6]jQgBE>T2+0LF=0W#\$*ypE!uS~QWMYu. Basements that are less than 200 square feet in area and used only to house mechanical equipment. The method for determining the ERI is now required to be in accordance with the RESNET/ICC Standard 301, which covers how to calculate the ERI score, compliance software tool certification and provides sources for input values not specified in the 2018 IECC. 0000020457 00000 n 2. YL` ^2fk0> 3uN;xpYXB- ` ^( 30). Editorial correction filed 10-7-83; effective thirtieth day thereafter (Register 83, No. (This requirement drops to 5 sq. HV]k0}7?a&j^V1. ), (4) Vertically pivoted or hinged windows to be cleaned from the sill shall have an unobstructed passage to the exterior sill that is at least 16 inches wide by 40 inches high. Ask him to reread the charging statement at the very beginning of the section, very clear where it applies. window (A) would be acceptable for egress. The minimum net clear opening height dimension shall be 24 inches. (5) and (6) of Division B of the 2012 British Columbia Building Code Anchors attached to masonry, other than concrete poured-in-place, in buildings erected after October 3, 1955, shall be installed while the wall is under construction and shall be shaped to build into the joints between masonry units. Manufacturers of window anchors and fittings shall submit to the Division all pertinent test and other data called for by this Order. In cases where it is impracticable to provide nuts and lock washers, the reinforcing plate may be tapped to receive 3/8-inch diameter bolts, and the bolts shall extend through the plate. When all 3 of these conditions apply to your window, fall protection must be required. I 'want' to have a window above the tub shower but building inspector says NO window. Both referenced standards used were also updated. hbbd```b``"84 ` X>&Ef`2D!d""l`( ,2HTt,#M? The residential provisions of the 2018 IECC apply to one- and two-family homes and other types of residential constructionsuch as multifamily buildings and assisted-living facilitiesthat are three stories or less in height. However, for example if the window is operable, the grade on the exterior is greater than 72 inches in height, but the sill height is 40 inches in height at the interior, then no prevention is necessary since the interior sill height is not less than 24 inches. Minimum sill height for windows according to the 2012 International Residential Code. It is important to note that the required opening size of 24 inches high, 20 inches wide and 5.0 or 5.7 square feet in area must be met by normal operation of the window, door or skylight without the use of keys, tools or special knowledge, and without the removal of a second sash from the opening. Some states specifically opted to skip the 2015 edition of the International Codes and continued to use the 2012 or earlier edition until the 2018 edition became available last year. I realize tempered glass required, but at what height? Double-hung, single-hung or counterbalanced windows shall have a minimum passage 21 inches wide and 30 inches high from the sill. PKn(\g %#@or(S54SbX%0 M cnLUG1:(!"bpf?&(/4 b2`ji"re;rMC&Nf`MYA]7cXPP.t)&DU.q NI))X,iCfXc~`O*@V HM ? You may want to go to the start of the section under 1013.1 which is for guards. Per Section R312.2.1 of the 2018 International Residential Code (IRC), all 3 conditions must exist for window fall protection to be required. 0000035932 00000 n If installing a wood pocket window or sash replacement kit, these products Permissible sill width and slope combinations are shown in Fig. 0000095263 00000 n if the area of the room is 100 sq. The 24-inch sill height is typically above a small child's center of gravity, reducing the likelihood of the child's toppling over the sill. Where windows are provided as a means of escape or rescue, they shall have a finished sill height not more than 4ches above the finished 4 in floor. The top of the sill height is located more than 72 inches above the finished grade below on the exterior side. Guards are required to be a minimum of 42" in height. by 24-in. Minimum net clear opening: 5.7 sq. The opening needs to be under 432 square inches when used in conjunction with a fly fan, or under 216 square inches if not using a fly fan. The design wind pressure values obtained from the 2018 IRC are to be multiplied by 0.6 for the purposes of comparison to the Design Pressure rating of the fenestration product obtained by testing in accordance with the 2017 edition of AAMA/WDMA/CSA 101/I.S.2/A440 (NAFS-17). (Title 24, Part 2, Section 2-8503(a)1. To Learn more about window fall protection requirements, be sure to check out Section R312.2 of the 2018 International Residential Code (IRC). 5. sill height, sill level, lintel, lintel level . (Title 24, Part 2, Section 2-8502(a)2.) (9) Traveling on the outside of the building shall not be permitted where the sill or ledge is less than 6 feet wide unless it is possible to keep at least one window cleaner's belt terminal attached at all times. The pass/fail criterion for windows, skylights and sliding glass doors remains at 0.3 cfm per square foot. Editorial correction filed 10-7-83; effective thirtieth day thereafter (Register 83, No. %PDF-1.7 hbbd```b``.@$'v) "9UHv]0L1XM+4eG@8-i l|0i^fTz`z[9@L 3 From a height of 36 inches (914 mm) to 42 inches (1067 mm), guards shall not have openings that allow passage of a sphere 4 3 / 8 inches (111 mm) in diameter. Section R312.2.1 of the 2012 International Residential Code located on page 91 explains that the lowest part of the actual window opening shall be no less than two . Components of exterior walls shall be fastened in accordance with Tables R602.3(1) through R602.3(4). In Climate Zones 3 (South Carolina to Oklahoma) and 4 (Virginia to Tennessee) it was reduced from 0.35 to 0.32, except for Marine in Climate Zone 4. The sill height of emergency escape windows shall not be more than 44 inches above the interior floor. 0000095442 00000 n (1)(b), windows, doors and their components in a building of no more than 10 m in height, measured from grade, may conform to the design pressure, performance grade and water resistance values in Table C-5 of Appendix C instead of the values calculated Vienna, VA 22180 Sill When installing a replacement window in a wood double-hung frame, use an angle finder (available at most hardware stores) to verify that the sill angle is the standard 14 degrees. . The Energy Rating Index (ERI) path. 0000002698 00000 n But as of 1st May 2013 that has now changed. The minimum distance from the face of the building for bolt installations when the bolt is placed in a reveal shall be as follows: In Reinforced Concrete--2 1/2 inches if secured to reinforcing steel. This Article establishes safety requirements for the cleaning of all windows of all buildings. In the 2018 IECC, there continues to be four energy conservation compliance paths for residential construction: 2. For each additional person occupying the same room, add 50 more square feet. The minimum egress window opening height is 24" high. (2) Clearance Above and Below Anchors. Such anchors shall extend not less than 5 inches into the concrete and shall have a cross-sectional area of not less than one-fourth of a square inch and shall be provided with a fluke at the end of the anchor not less than 1 inch in length. (B) Where the threaded bolt is an integral part of the anchor, it shall be at least 1/2-inch in diameter and shall be secured by means of a nut and lock washer, or any other method acceptable to the Division. (2) Employers shall not permit their employees to use any building safety devices or equipment prior to receiving copies of the written assurance and, if required, an OPOS from the building owner as required by Section 3282(p)(1)(A) and (C) above. Exceptions can be made for windows that do not open more than 4 inches or that have window guards or opening control devices in compliance with ASTM F2090-17. 0000019201 00000 n Also windows are 32.375" wide by 72" height casement style full opening. C. A building has extreme architectural features, which require the use of complex rigging or equipment, or a building that uses rigging or equipment not covered by these Orders. Sill plate. When the anchor and bolt are forged as one piece, such anchors may be used in single or double configurations when provided with a front collar to prohibit anchor rotation and a rear flat washer of at least twice the diameter of the bolt with a lock washer and nut. 0000007533 00000 n (Title 24, Part 2, Section 2-8503(a)2. The specific section you reference is almost an exception allowing window sills in R-2 & R-3 to be lower, at 36", if they are provided with the control device described in 1013.8.1. Similar to option 1 above this ensure the device acts as somewhat of a guardrail by not allowing any opening larger than 4 inches. All such tests shall be conducted as required in Section 3296(b). 1. 3. Printing is a feature of Digital Codes Premium. ), (7) Stationary panels up to 5 feet in width may be cleaned by standing on a sill or ledge (See Figure 1 for width and slope restrictions) while supported by anchors on each side of the panels if access is provided via an openable panel adjacent to the stationary panel. SI(dr8pM|/9YuiKZ$q%4^. The minimum egress window opening is 20" wide. Replacement windows installed in building meeting the scope of this code shall be exempt from the maximum sill height requirements of Sections R310.1 and R310.2.1 and R310.2.2, provided the replacement window meets the following conditions: 1. The 2018 IRC requires site-built windows to be tested for design pressure in accordance with ASTM E330. Federal agencies do not adopt I-codes in the same manner as states and local governments do, but agencies such as the Department of Defense, Department of State, Department of Housing and Urban Development, the Veterans Administration and General Services Administration, among others, use the International Codes in various ways, such as requiring them when requesting bids to construct, renovate or maintain properties and facilities. Where a window is provided as the emergency escape and rescue opening, it shall have a sill height of not more than 44 inches (1118 mm) above the floor; where the sill height is below grade, it shall be provided with a window well in accordance with Section R310.2.3. Replacement shall be as specified by the anchor manufacturer or other method acceptable to the Division. ,HtO41'Cp3Zi-8`_~:g?^. 0000009621 00000 n (b) Provisions for preventing accidents due to overhead high voltage lines shall be in conformance with the High Voltage Electrical Safety Orders, Article 37. (Title 24, Part 2, Section 2-8503(a)11.). By definition, a thermally isolated sunroom must be separated from the remainder of the building either by existing exterior wall construction or construction that meets the energy efficiency requirements of the 2018 IECC for exterior walls. An OPOS shall be developed by a person(s) with knowledge in the design, installation and use of building maintenance equipment (i.e. Amendment of subsections (a)(8), (b)(1) and (2), (d)(2) and (5) filed 9-12-85; effective thirtieth day thereafter (Register 85, No. Read the California Building Codes Read the Oakland Amendments to the California Building Codes Read the Oakland Building Maintenance Code (OMC 15.08) 2022 Building Standards Code Changes 2019 CA Green Building Standards Code Requirements Bureau of Building Code Bulletins Bureau of Building Directives Access for Persons with Disabilities AVAILABLE NOW! The intent of this later provision is to permit windows that are equipped with WOCDs to also be used to meet the EERO requirements of the 2018 IRC. trailer <]/Prev 131229>> startxref 0 %%EOF 62 0 obj <>stream And, don't see anything in the sections that says "children" Some adults have small parts. 0000028405 00000 n Contractor's Assistant: OK. Tell me a bit more about what's going on so we can help you best. (Title 24, Part 2, Section 2-8503(a)7. type 'E') because of the presence of the building's occupants being young children. Title 24 Part 2.5 The 2019 Edition of the California Residential Code (CRC) contains residential building design and construction requirements relating to fire and life safety, structural safety, and access compliance. Section R308.4 of the IRC establishes the locations where safety glazing is required. You are using an out of date browser. Page 1 of 2 Window fall protection: Where the sill height above finished grade on the exterior side of an operable window opening is greater than 72 . Finished sill height shall be not more than 44 inches above the finished floor. Tempered glass maybe? If the sill height is below grade, the window must have a window well. Due to the prevalent use by federal agencies, I-codes began being enforced in countries other than the U.S, including the Middle East (Abu Dhabi, Saudi Arabia and Afghanistan). Codes & Standards Codes & Standards The design and construction of all structures shall be in full compliance with Title 15 of the Temecula Municipal Code, which adopts (but is not limited to) the following codes which are adopted by reference as the building codes of the City of Temecula: (1) Locations. NOTE: Authority cited: Section 142.3, Labor Code. endobj When the mullion is tested in accordance with AAMA 450-10, the deflection limit of L/175 does not need to be met. Fun Tip:To learn about Egress Window Requirements per the International Residential Code (IRC), be sure to check out thisPOST. 7-23-98; operative 8-22-98 (Register 98, No. (DEGREES BELOW HORIZONTAL). 2012 IBC 1013.8 states: Operable sections of windows shall not permit openings that allow passage of a 4-inch diameter sphere where such openings are located within 36 inches of the finished floor [and located more than 72 inches above the finished grade or surface below]. from its web site at, Subchapter 7. Because many belt terminals slide onto the anchor from above and extend 4 or 5 inches below the anchor when attached, obstructions shall not be allowed within this distance above or below the anchor head. The 30" x 30" area in front of a shower head must also be 80" in height. Training materials and code education for public and private sector stakeholders The sill height must not be more than 44" above the floor. (Title 24, Part 2, Section 2-8502(b).). B. Aisle Standards. 2. Maximum sill height above floor: 44 in. }> W)Sqq. Item 1 of Section R703.4 requires mechanically applied flashing to comply with AAMA 712-14. 41). [\Jl`\1}fLTyg=iW(23Bz)s\c/-'M;. (7mO>\QMh?Qs071bpNF@Jyx(5i9OX%kTt,W3geN~>f+L=Vz>5{2ul7! The whole building performance path permits tradeoffs between some components of the residence that impact energy use. (d) Employers shall instruct their window cleaning employees in the proper use of all equipment provided to them, and shall supervise the use of the equipment and safety devices to insure that safe working practices are observed. This method of traveling shall not be permitted, however, if the sill or ledge is not continuous with at least 6 inches in front of the mullions or if each window unit is not readily accessible. ?+M7dSKS6^3sQu+:vC.VQQB7Hrjg-v(tcH?do YkU3&M / h]' @4^~=j3Y";,hCJ|i0sk 1_nauBY5fqMdc*JUc~C}5>$j$$9Q$$T!TyM::ko\OPO4aU3efH@0xVBu#osgm|,[ve\'a?Gh%a-kn$hd&Y44=Ni0SLY+v&ik~.RY>M}0P?$o.v!lUaT]v\V0L)H/e-} om?|>|.DlH7A8A*?4~Xf!\6R\Fm?G\xW8@Eo0_ozdutHR8.KRKu4T 13 0 obj <> endobj Ropes that have been contacted by the heat-producing process shall be considered to be permanently damaged and shall not be used for scaffold support. Amendment filed 9-12-85; effective thirtieth day thereafter (Register 85, No. 0000035112 00000 n 0000001396 00000 n This tab provides a method for a window manufacturer to demonstrate its product has been successfully tested in accordance with ASTM E1886 and ASTM E1996 by including the tab as part of its NAFS air-water-structural certification label. The latter will be consistent with the 2018 IBC. 11). All Rights Reserved. The energy conservation requirements for one- and two-family homes and townhouses three stories or less in height are also given in Chapter 11 of the 2018 IRC. 0000003399 00000 n Provisions for design loads of all exterior cladding of residential structuresincluding fenestrationare set forth in Section R301 of the 2018 IRC. 0000019900 00000 n 0 The triangular openings at the open sides of a stair, formed by the riser, tread and bottom rail shall not allow passage of a sphere 6 inches (152 mm) in diameter. Stud size, height, and spacing.The size, height, and spacing . The proposed changes include a new rule stating that the portion of a second storey window that is able to open must be at least three feet from the finished floor, or the window must have a. 37). (m) Window cleaners shall not be permitted to work from any sill on which there is any obstruction or a slippery substance that might impair their footing. But, homes that are outside the scope of the prescriptive provisions of the 2018 IRC must be designed using the 2016 edition of ASCE 7. 1. %PDF-1.6 % (2) Any window which when fully opened has a clear opening with the lesser dimension exceeding 18 inches, or any window in which the height to width relationship presents a hazard, shall be considered as presenting the hazard of falling through as specified in Section 3282(g)(1) above. Related Code Sections R310.2.2 Building Planning, Window Sill Height The 2018 IRC requires glazing within 24 inches of the hinge side of an in-swinging door now have safety glazing where the glazing is at an angle less than 180 degrees from the plane of the door. (n) Washing from the sill shall not be permitted unless there is a certain minimum standing room on the sill in relation to its slope. <> Products that need to meet impact resistance requirements must be tested to one of a few different sets of standards. The only change here for the 2018 IRC is the use of the 2017 edition rather than the 2010 edition of the ASTM F2090. How to Size Ceiling Joists? are set forth in Section R310 of the 2018 IRC. An OPOS that requires structural modifications to the building or existing building maintenance equipment shall have such modifications designed by a mechanical, structural or civil engineer currently registered in the State of California with experience in the design and installation of such equipment. At first glance, you might assume that a 20-in. NKBA The NKBA doesn't have anything to add to the IRC requirement in this case. 0000002431 00000 n sized window for 34 in. All anchors and hardware shall be of Type 303, 304, or 316 stainless and shall meet or exceed the material requirements of these orders. Manufacturers and dealers that sell products in several states should be aware that, at this time, multiple editions of the International Codes are being enforced across the country. This requirement applies whether the entire window unitincluding frame, sash and glazingis being replaced, or just the sash and glazing. SLOPE OF STILL OR SURFACE endstream endobj startxref Permanent ladder or steps cannot encroach the required window well dimensions by more than 6 inches. Unchanged from the last code cycle, the 2018 IRC requires testing or structural calculations to demonstrate the ability of window mullions to meet certain structural requirements. California Residential Code 2019. This component serves as a collection device to drain incidental water to the exterior of the building and should be properly sealed to the opening. (5) Masonry and Concrete. Egress windows provide emergency exits to homeowners in case of fire or other life-threatening situation. Those dimensions would yield a net clear opening of only 3.3 sq. (7) Solid Metal. Copyright 2023 Building Code Trainer, All rights reserved. ft. for ground floor). ), (12) Where double-headed anchors are installed, they shall be placed so that there is enough free room for belts to be attached to both terminals at one anchor location along with the capability for either belt to be removed independently. While they are not a new concept, the standards and regulations associated with where they are needed and what sizes are required have changed. Beginning with the 2012 International Codes, the energy conservation provisions of Chapter 11 of the IRC are an exact duplicate of the provisions of the IECC for the same building. The 2018 IRC continues to require the bottom of openings created by operable windows to be a minimum height of 24 inches above the adjacent interior floor when they are more than 6 feet above the grade outside the window. 2. Z The area of the window well shall allow the emergency escape and rescue opening to be fully opened. (k) Special precautions shall be taken by the user to protect scaffold members, including any wire, fiber, or synthetic rope, when a heat-producing process is in use. (1) An installed anchor shall not be used for any purpose other than attachment of window cleaner's belt terminals. This building code provides a safety factor for small children. It states: "Basements and every sleeping room shall have at least one operable emergency and rescue opening. 0 * y(!P-Iwedg*l28;w}hh)/$r1fcusXO,H&0,t4gVwN;u}k:e0HN_-(5MIchA!&G^f[NlI,i| 7Yzz"b-/[P?OG iq,L*h4;_'Z.Jz U=U4 R5lo|?F;9~m.cS,g r7eOuf0nizs!. Openable area equals 5.7 sq. The minimum clear opening width dimension shall be 20 inches. All safety devices and parts of such equipment, including related building support structures, shall be inspected and where necessary, tested to determine if they are safe to use or operate. ~9. +Ip^[ +G'cruGr9DSsszh{{[MTEYE2uP.S3 |tOZm |um?@;Z+jQ:dJlmCp7d0NT1~mUEvUOdQ!q+a7)0do@ The provisions in this Section shall apply to drive-through and drive-up facilities where allowed in compliance with Article 2 (Zones, Allowable Uses, and Development and Design Standards) and the following standards. The standard requires the fall prevention devices to be such that a 4 inch diameter sphere cannot pass through it. clear min. This information is provided free of charge by the Department of Industrial Relations Size - Single-occupancy bedrooms should have at least 70 square feet of floor space, with a minimum of 7 feet in one direction. When the escape opening is a window, the sill height must be no more than 44 inches above the floor. Sill pans have upturned walls along the interior edge and at both ends, creating a three-sided box. Bathrooms must have a minimum ceiling height of 80" in front of fixtures, which is less than the 90" ceiling height required in most rooms. mX^1k{#YX{o^u5 The performance caps are as follows: The U-factor requirements discussed above for vertical fenestration also apply to exterior glass doors. If you are installing windows within 2 feet of a door and lower than 5 feet from the ground, you need tempered glass in the windows, even though these might be higher than 18 inches from the ground. 1436 0 obj <> endobj endstream endobj 1437 0 obj <. They must open to a minimum area of 0.35 m2. When it comes to windows located throughout your home, you might be somewhat familiar with the maximum sill height dimensions required for egress windows, but did you know there is also a minimum dimension applied to sill heights? The control device should have an emergency release mechanism that allows it to release thus allowing the window to fully open so that it does not reduce the net clear opening area of the window to be less than what is required for egress per Section R310.2.1.
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