Both referenced standards used were also updated. (g) (1) In every building where window cleaning operations are performed in such a manner that a person stands on the sill in order to clean the window or works from the inside where the window opening is of such size that it would be possible to fall through the open window to the outside, there shall be installed window cleaning safety anchors or other anchorages approved by the Division. 1436 0 obj <> endobj Code Regs., Title 24) will be published July 1, 2022, with an effective date of January 1, 2023. Specifically, ERI scores were increased from 55 to 61 in Climate Zone 5 and from 51 to 57 in Climate Zone 3. Anchors installed on buildings of masonry and concrete construction erected before October 3, 1955 shall be attached to the window frame as required in these orders, or by other methods acceptable to the Division. (Title 24, Part 2, Section 2-8503(a)3. The minimum egress window opening height is 24" high. }> W)Sqq. This requirement applies whether the entire window unitincluding frame, sash and glazingis being replaced, or just the sash and glazing. This information is provided free of charge by the Department of Industrial Relations 1. The bolts shall be a minimum of 3/8-inch in diameter and shall pass through a solid section of the window construction. The majority of states in the United States base their egress code on the International Residential Code (IRC). %%EOF One option is testing in accordance with ASTM E1886-13a and ASTM E1996-2014a, which must be used together. (p)(1)(A) Building owners shall provide the employer written assurance, before use, that all their building's safety devices and equipment meet the provisions of these orders. California Retail Food Code typically requires a self-closing window with a relatively small service opening. Privacy Policy, 2018 International Code Requirements for Windows & Doors, Next-Gen Glass Can Save Billions in Energy Costs, IBS showcases opportunities for windows and doors, Q+A with Quanex | Rebounding and Rebranding. 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. Again this option will require some creativity if installed at egress windows to make sure the egress opening is maintained while fall protection is being provided for those locations that require it. 0000027948 00000 n (Title 24, Part 2, Section 2-8502(b).). 0000031956 00000 n are set forth in Section R310 of the 2018 IRC. ), (h) Lag screws shall not be used in new or replacement installations. The only change here for the 2018 IRC is the use of the 2017 edition rather than the 2010 edition of the ASTM F2090. General Industry Safety Orders, https://www.dir.ca.gov/od_pub/disclaimer.html. 1498 0 obj <>stream hEight & W idth rE quirEMEnts to MEE t rEq'd 5.7 sq. Z 0000024311 00000 n JavaScript is disabled. Tempered glass maybe? Overall, the prescriptive provisions continue to reference the 2010 edition of American Society of Civil Engineers (ASCE) 7, Minimum Design Loads for Buildings, while those outside these provisions must be based on the 2016 edition, which was adopted as the IRC reference standard for loads. Answer:The BC Building Code is a provincial regulation for new construction and building alterations, establishing minimum standards for safety, health, accessibility, fire and structural protection of buildings, and protection of the building or facility from water and sewer damage. Typically, the EERO requirements are met with operable windows or doors. 0000006801 00000 n Sill plate. The height of the clear opening must be at least 24" and the width must be at least 20". 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. This is why it is imperative that the code user verify the edition of the code in any specific jurisdiction prior to beginning a project there. 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). 1 0 obj 344 Maple Ave West The minimum egress window opening is 20" wide. (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. WindoW EgrEss: Min. 0000032359 00000 n Replacement shall be as specified by the anchor manufacturer or other method acceptable to the Division. (Title 24, Part 2, Section 2-8503(a)8.). 1. 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. clear min. 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. 7-23-98; operative 8-22-98 (Register 98, No. 0000001874 00000 n When the distance is from 6 feet to 8 feet wide, anchors are required unless there is a railing or parapet at least 2 feet high. Section R310.1 of the code explains the requirements for emergency escape and rescue. ft., Then we can provide one window with size 4 ft x 4 ft. 0000080673 00000 n Where on-site renewable energy is included in the ERI calculation, buildings must meet or exceed the thermal envelope requirements in Table 402.1.2 of the 2015 IECC, but the 2009 IECC envelope backstop will remain in effect for buildings without on-site generation. The use of protective wood panels as an alternative to impact-resistant glazing or shutters continues to be permitted for one- and two-story, single-family dwellings, duplexes and residential care facilities. 8 0 obj <> endobj xref 8 55 0000000016 00000 n % Tempered Or Safety Glass Doors Code vs Window CodeAccording to the building requirements for glass doors, all the sliding, operable, fixed panel, bi-folding, or swinging doors should have installed tempered glass. 703/442-4890, National Glass Association. 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. 0000004684 00000 n (B) All anchors and anchor fastenings shall be provided with means to prevent them from turning, backing off or becoming loose. {hHzD= x5*)$ #NJit$Sm(52{5}dwy,a)H[\Yoi4x The replacement window is the manufacturer's largest standard size window that will fit within the . In most of the central U.S., the design wind speeds were reduced from the 2010 edition of ASCE 7 to the 2016 edition. ), (5) The maximum width of a double-hung or single-hung window to be washed while standing on sill or ledge, supported by an anchor on either side of the window is 6 feet. If you are installing windows within 2 feet of a door and lower than 5 feet from the ground, you need tempered glass in the windows, even though these might be higher than 18 inches from the ground. An OPOS shall be developed which at a minimum shall contain the elements of Appendix A of this Article. The design loads of concern for vertical glazing are design wind load and impact resistance. Amendment filed 3-9-93; operative 4-8-93 (Register 93, No. The ability to trade off a more efficient mechanical system for other components of the building, however, is not included in the list of those permitted in the 2018 IECC. It is anticipated that, in a similar fashion, the 2015 International Codes will continue to be used by some jurisdictions until at least 2021 or later. _#|*A.s9,Qt0?>x_P:d4&f*\PN8$U77[!t0Go-g#j.r@@~1o+O Maximum sill height above floor: 44 in. At least half of the ceiling must be at least seven feet tall. The minimum window-sill height requirements are intended to reduce the number of injuries from falls by children through open windows. Construct framed walls using advanced framing details like minimal framing at windows and doors to reduce thermal bridging and allow more space for insulation. Lets take a look at when it is necessary to comply with this section and how you can achieve compliance. ft. (Other types of residential occupancies, such as multifamily buildings and assisted-living facilities greater than three stories in height, and hotels and motels of any height, are governed by the provisions of the 2018 IECC for commercial buildings.). (In other words, an enclosed porch 5 feet wide will never qualify.) NOTE: Authority cited: Section 142.3, Labor Code. endstream endobj 14 0 obj <> endobj 15 0 obj <>/ProcSet[/PDF/Text/ImageB]/XObject<>>>/Rotate 0/Type/Page>> endobj 16 0 obj <>stream It is imperative that the builder, code official, manufacturer and anyone else involved in choosing or approving the windows, doors or skylights for a particular residence be aware as to whether the 0.6 conversion factor is appropriate or not, and which set of provisions is being used to determine the design wind pressures for the home. 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). 2. Training materials and code education for public and private sector stakeholders This information is provided free of charge by the Department of Industrial Relations Under the prescriptive path of the 2018 IECC for residential construction, there is no limit on the percentage of glazing in the exterior wall. Basically, all exterior openings in wind-borne debris areas are required to be impact-resistant. The latter will be consistent with the 2018 IBC. 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. (Title 24, Part 2, Section 2-8503(a)6. In dwelling units, where the opening of an operable window is located more than 72 inches (1829 mm) above the finished grade or surface below, the lowest part of the clear opening of the window shall be a minimum of 24 inches (610 mm) above the fininshed floor of the room in which the window is located. In Climate Zones 5 to 8 (Ohio to Alaska) it was reduced from 0.32 to 0.30. 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. (5) The maximum width of a double-hung or single-hung window to be washed while standing on sill or ledge, supported by an anchor on either side of the window is 6 feet. This bulletin can be downloaded from the AAMA online store, aamanet.org/store. The 2015 IBC contains requirements for minimum sill heights for operable windows in apartments, townhouses, duplexes and single-family homes. Design wind speeds are used to calculate the design wind pressures. If installing a wood pocket window or sash replacement kit, these products Amendment filed 7-16-76; effective thirtieth day thereafter (Register 76, No. (5) Masonry and Concrete. . 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. ), (3) In every building other than those described in Section 3282(g)(1), provisions shall be made for window cleaning by use of elevating platforms, rolling scaffolds, suspended scaffolds, boatswain's chairs, or ladders, as specified in these orders. You may want to go to the start of the section under 1013.1 which is for guards. Code for Window Sill Height. Codes & Standards Major requirements were set forth in the published 2018 I-codes for windows, doors, skylights and other fenestration products in single family homes, duplexes and townhouses that are three stories or less in height. The ASCE 7-16 wind speed maps were not adopted into the 2018 code. (CRC R602.3.1) 3. 0000082745 00000 n 0000008535 00000 n (Title 24, Part 2, Section 2-8502(a)2. Community Noise Equivalent Level (CNEL) Requirements. Must be able to stay open without the need for added support. 0000035504 00000 n To recap, although the average window is three feet off the floor for furniture placement, the safety codes say that your windowsill can be as low as 24 inches. The maximum prescriptive SHGC for vertical glazing did not change between the 2015 and 2018 IECC. x=ko9?4X@}z!0`'Ll|-%$WR%Y&YbX/ROe_Yyt}EY It is important to note however before we move on that per the International Residential Code (IRC), the minimum sill height is 24 inches but per the International Building Code (IBC), the minimum sill height is 36 inch. U-factor is to be determined in accordance with National Fenestration Rating Council (NFRC) 100-17 or by use of a default table in the 2018 IECC. Such openings shall open directly . HV]k0}7?a&j^V1. GFCI Bathroom Outlet | Where Must it Be Located? Ask him to reread the charging statement at the very beginning of the section, very clear where it applies. 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. 0000014711 00000 n For a simple residential building or house, a minimum of 15 % area of the room is allowed to provide for window openings. if the area of the room is 100 sq. (B) All safety devices and equipment considered in the written assurance shall be inspected at least every 12 months. The written assurance shall consider, but not be limited to: window anchors and fittings; load sustaining capabilities of platforms, building components, hoisting and supporting equipment; stability factors for carriages, platforms and supporting equipment; maximum horizontal force for movement of carriages and davits; design of carriages, hoisting machines, wire rope and stabilization systems; and design criteria for electrical wiring and equipment. 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: In Brick--At brick joint, not less than 8 inches from building face. (1) An installed anchor shall not be used for any purpose other than attachment of window cleaner's belt terminals. This reliance on the International Codes has now spread to other countries, including Georgia (Eastern Europe), Mexico, Columbia and Honduras. How to Protect Wood from Decay and When is it Required? Figure 1 - SILL WIDTH AND SLOPE 2015 International Building Code (IBC) with Washington State Amendments. In the 2018 IECC (Table R406.4), there was an increase in maximum ERI scores from 51-55 to 57-62. 11). Reference: Section 142.3, Labor Code; and Section 18943(c), Health and Safety Code. Unit 272 <> The code regulates this minimum sill height only when the window . It is not permissible if the intersection falls anywhere in the shaded area. 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. 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. Other changes, however, occurred between the 2010 and 2016 editions of ASCE 7 that effect design wind loads in the 2018 I-codes. 4. (2) Wood. (f) Only employees who have been properly trained to handle such equipment shall be assigned to work from scaffolds or boatswain's chairs. 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). For those homes outside the scope of the prescriptive provisions of the 2018 IRC, these locations will be determined in accordance with ASCE 7-16. Anchors attached to solid metal construction shall be installed by one of the following methods: (A) At least two machine screws or bolts of 3/8-inch diameter stainless steel or equivalent passing through the frame and secured by means of nuts and lock washers. The 2018 editions of the IRC and IECC are the most recent, and many states and localities are in the process of adopting this edition of I-codes. 0000014419 00000 n (o) No employee shall be permitted to work from, stand or walk on any surface that is not rated for such live loading by the building's engineer of record and/or a building official. 0000095442 00000 n 2. 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. Window wells greater than 44 inches in depth requires a permanently fixed ladder or steps to provide access. Scope. 37). The minimum net clear opening height dimension shall be 24 inches. Yr/_|yE/L^PQl\Cwrfw/_ '/N|p.lL 1(pTE)}m3j\xr3)\zr537O&^HvMu[nbE..A7c u46+@ly+D}:&%4p}no~E9=>h8qQ5\ The 2022 California Building Standards Code (Cal. 0000002829 00000 n [\Jl`\1}fLTyg=iW(23Bz)s\c/-'M;. (7mO>\QMh?Qs071bpNF@Jyx(5i9OX%kTt,W3geN~>f+L=Vz>5{2ul7! 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. 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. 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. Amendment filed 3-9-93; operative 4-8-93 (Register 93, No. Bearing studs. The performance caps are as follows: The U-factor requirements discussed above for vertical fenestration also apply to exterior glass doors. The WOCD must limit the initial opening of the window to no more than 4 inches, but mustalsobe releasable with no more than 15 pounds of force to open more fully with two single actions or one dual action and must reset automatically once closed. To Learn more about window fall protection requirements, be sure to check out Section R312.2 of the 2018 International Residential Code (IRC). 0000011658 00000 n Those dimensions would yield a net clear opening of only 3.3 sq. 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. Products that need to meet impact resistance requirements must be tested to one of a few different sets of standards. 0000035932 00000 n Amendment of subsections (a)(8), (b)(1) and (2), (d)(2) and (5) filed 9-12-85; effective thirtieth day thereafter (Register 85, No. (A) When anchors are attached to hollow or solid aluminum frames, the reinforcing plate shall be coated or protected so as to minimize electrolytic action between unlike metals. 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. General Industry Safety Orders, https://www.dir.ca.gov/od_pub/disclaimer.html. ft. for ground floor). 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. How to Size Ceiling Joists? This Tip Sheet reflects code requirements of the 2015 International Residential Code (IRC) and the 2015 International Building Code (IBC) with Washington State Amendments. 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. The standard also requires the device to have an emergency release mechanism that can be operated without a key, tool, or any special knowledge thereby ensuring for a quick release in case of an emergency where the opening is required for escape and rescue situations. For this reason, the National Association of Home Builders (NAHB), Roofing Contractors of America (RCA), and other groups, lobbied to not have them brought into the 2018 IRC. Previously, there was some variation in the energy performance requirements for residential buildings that were included in both the IECC and the IRC. Thanks to all. 41 in. type 'E') because of the presence of the building's occupants being young children. R310.2.3 Window wells. When anchors are employed with separate bolt(s), the preceding conditions will apply, provided that either two machine or carriage bolts are employed, or certain special anchor types have one bolt with screws to prohibit anchor movement. stream 0 Heading into 2019, it is anticipated that adoption of the 2015 IRC and IECC will continue to decrease, as jurisdictions begin their review process in consideration of adoption of the 2018 I-codes. (e) Inspection of Anchors and Fittings. 0000027559 00000 n sized window for 34 in. Major requirements were set forth in the published 2018 I-codes for windows, doors, skylights and other fenestration products in single family homes, duplexes and townhouses that are three stories or less in height. For skylights and sloped glazing, however, other factors used to calculate design wind pressure were increased. NOTE: Authority cited: Section 142.3, Labor Code. I realize tempered glass required, but at what height? Limit framing to a maximum of one pair of king studs per window opening. (Title 24, Part 2, Section 2-8502(a)2.) (Title 24, Part 2, Section 2-8503(a)5.). <> Amendment filed 9-12-85; effective thirtieth day thereafter (Register 85, No. Guards are required to be a minimum of 42" in height. The minimum window-sill height requirements are intended to reduce the number of injuries from falls by children through open windows. For a better experience, please enable JavaScript in your browser before proceeding. Similarly, the SHGC of the fenestration is to be determined in accordance with NFRC 200-17 or by use of a default table. The minimum opening height is 24" and the minimum width is 20 inches. These types of buildings are referred to as low rise residential construction within the family of International Codes, and requirements for them are established in the International Residential Code (IRC) and the International Energy Conservation Code (IECC). 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. Minimum height of opening: 24 in. Local Amendments to Building StandardsOrdinances The Building Permit Fee All you need to know about the Building Standards Administration Special Revolving Fund (BSASRF), also known as The Green Fee or SB 1473. 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. We Recommend Home Hacks & Answers Ohio Building Codes for Adding Egress Windows Home Hacks & Answers Height of Kitchen Windows Home Hacks & Answers Both the 2018 IECC and IRC continue to require that replacement windows comply with the energy conservation requirements for fenestration in new construction. Sleeping rooms in basements of homes that are equipped throughout with a residential sprinkler system that complies with NFPA 13R or 13D, when at least one EERO and one means of egress door, or two EEROs, are provided from the basement. AVAILABLE NOW! Add more people using the space to sleep, and you have to accommodate with 50 more square feet . 4. Fun Tip:To learn the difference between the International Residential Code (IRC) verses the International Building Code (IBC), be sure to check out thisPOST. The 2018 IECC and IRC require air leakage resistance of windows, door assemblies and unit skylights to be determined in accordance with AAMA/WDMA/CSA 101/I.S.2/A440 (NAFS)-17 or NFRC 400-17. 0000035967 00000 n 0000003825 00000 n endstream endobj 1437 0 obj <. 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. Up until recently the Building Code of Australia's only requirement in relation to bedroom windows - those most at risk of children climbing through them - is that the window must possess a sill height of 865mm if the fall from the bottom of the window to the ground below is 4 metres or more. The final result is that the prescriptive provisions of the 2018 IRC remain unchanged from the 2015 IRC and will continue to be based upon the 2010 edition of ASCE 7. Anchors attached to hollow metal construction shall be installed by one of the following methods: (A) At least two machine screws or bolts of 3/8-inch diameter stainless steel or equivalent passing through the frame and a steel reinforcing plate 3/8-inch thick that extends not less than 5 inches above the top bolt hole, placed on the inside of the frame and secured by means of nuts and lock washers. TI[aW,KK1&;`A8ar"oeMLx{9z#Pgt{Wrfd;~KG; To aid in this, the International Code Council (ICC) website provides an adoption chart listing the latest edition being used in each state and in some cases in a local jurisdiction. (Title 24, Part 2, Section 2-8503(a)2. 29). Requirements for energy performance in both residential and commercial buildings are spelled out in the 2018 IECC. Reference: Section 142.3, Labor Code; and Section 18943(c), Health and Safety Code. 52 0 obj <>stream Posted 12 years ago. ), (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. Ladders or steps required by this section shall not be required to comply with Section R311.7. 0000028405 00000 n ), (11) Traveling methods that comply with these regulations shall not be permitted on ledges or sills less than 6 feet in width unless double-headed anchors or 2 single-headed anchors with separate usable heads are provided on each side of all windows in the series, along with at least one openable panel to afford a safe, convenient means of access. For stationary panels over 5 feet, but not exceeding 6 feet in width, the sill or ledge must be at least 10 inches wide with a slope not exceeding 5 degrees. The 2018 IRC requires emergency escape and rescue openings (EEROs) in all sleeping rooms and in all basements with two exceptions: The requirements for sizes, locations, etc. 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. Minimum sill height for windows according to the 2012 International Residential Code. 0 The Caribbean Community and Common Market (CARICOM: 15 Carribean counties) use the IBC, IMC, IPC and IECC as base documents for that regions regulations. This can be accomplished using any of the compliance paths in the IRC or IECC. Printing is a feature of Digital Codes Premium. 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. (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. 0000001684 00000 n +Ip^[ +G'cruGr9DSsszh{{[MTEYE2uP.S3 |tOZm |um?@;Z+jQ:dJlmCp7d0NT1~mUEvUOdQ!q+a7)0do@ 5?`eu=f/IHE 5k0)o{ZI}pQ(0,uGNvVwq+2l/yMa5="2s\;J s8lQf]JU:F$ @%*h]OAuPbpd@ % A y x}[Dpe F}2%&'JW#tV Limit framing to a maximum of one pair of jack studs per window opening to support the header and window sill. (2) The manufacturer or authorized representative, of any window unit intended for installation in new construction or remodeling shall submit evidence satisfactory to the Division that the complete installation with approved anchors has successfully withstood the drop test specified in paragraph 4.5.3(d)(2) of ANSI/ASME A39.1-1991, Safety Requirements for Window Cleaning, which is herein incorporated by reference, without failure of the frame at the point of attachment of the anchors and without detachment of the window unit from its attachments to the wall section.