Volume 41, Issue 12 - December 2006

Code Actions
ICC Committees Approve Industry-Specific Code Change Proposals

The 2006/2007 International Code Council’s (ICC) Code Development Hearings recently took place in Orlando, Fla. Hundreds of codes were heard over the course of the hearings and a large percentage related to the glazing and fenestration industries. This section looks at some of the approved code changes in the International Building Code (IBC), International Energy Conservation Code (IECC) and the International Residential Code (IRC) that could have an impact on the industries. To learn more about the ICC and other code change proposals visit www.iccsafe.org.


International Building Code Appeals

Proposal # E18
Code Section: 1005.2
Proponent: Gregory R. Keith, Professional Heuristic Development
Reorganized the encroachment provisions of the IBC for doors and handrails.

Proposal # E47, Part II
Code Section: 1008.1.8.3
Proponent: Ralph Vasami, The Kellen Company for the Door Safety Council
In the case of fire-rated doors, this code change allows locks and latches to prevent operation once disabled by the minimum elevated temperature in accordance with listed fire door test procedures.

Proposal # E190
Code Section: 1109.13.1
Proponent: Tim Pate, City and County of Broomfield, Colo.
This code change adds Section 1107.6.2.1.1 to Section 1109.13.1 of the IBC for accessible windows. IBC Section 1107.6.2.1 requires that all apartment houses, monasteries and convents have the minimum number of Type A units as listed in this section. The IBC then requires all Type A units to be constructed as per ICC A117.1. The 2003 edition of ICC A117.1, Section 1003.13 requires that “Where operable windows are provided, at least one window in each sleeping, living or dining space shall have operable parts complying with Section 1003.9.”

Proposal # S17
Code Section: 1609.1.1, 1609.1.1.2 -1609.1.1.2.2
Proponent: Eric Stafford, Institute for Business and Home Safety
The code change permits the use of wind tunnel testing in accordance with ASCE 7 with specific provisions that limit the reduction in design wind pressure that can be taken by performing wind tunnel testing to 80 percent.

Proposal # S18
Code Section: 1609.1.2
Proponent: Edwin T. Huston, Smith & Huston, representing the National Council of Structural Engineering Associations 
Limits the occupancies where wood structural panels can be used to protect exterior wall openings from impact by windborne debris to use Group R-3 and R-4.

Proposal # S19, Part I
Code Section: 1609.1.2, Table 1602.1.2
Proponent: Eric Stafford, Institute for Business and Home Safety
The change limits the use of the wood structural panels used in exterior wall openings, so as to provide a higher level of protection for all other building occupancy groups.

Proposal # S45
Code Section: 1708
Proponent: Philip Brazil, P.E., Reid Middleton Inc.
This code change requires the cladding on buildings and structures in areas with wind forces of 110 miles per hour or greater to be subject to periodic special inspections.

Proposal #S105, Part I
Code Section: 2406.1.1, 2406.2
Proponent: William Koffel, P.E., Koffel Associates Inc. for the Glazing Industry Code Committee
This code change adds a reference to ANSI Z97.1 for safety glazing in hazardous locations not covered by CPSC 16 CFR Part 1201. Only the categories of ANSI Z97.1 that are comparable to those of CPSC 16 CFR Part 1201 are permitted to be used.

Proposal # S106, Part I
Code Section: 2406.2.1, 2407.1, 2408.2.1
Proponent: William Koffel, P.E., Koffel Associates Inc. for the Glazing Industry Code Committee
This code adds ANSI Z97.1 as an alternate to CPSC 16 CFR Part 1201 for multi-lite glazed assemblies, glass used in handrails and guard rails and in athletic facilities.

Proposal # S108
Code Section: 2407.1.2
Proponent: William Koffel, P.E., Koffel Associates Inc. for the Glazing Industry Code Committee
This revision adds an exception to code language concerning handrail or guards. The exception allows that “a top rail shall not be required where the glass balusters are laminated glass with two or more glass plies of equal thickness and the same glass type. The panels shall be designed to withstand the loads specified in Section 1607.7”

Proposal # FS10
Code Section: 410.3.5.2, 703.2, 703.2.1, 703.3, 704.7, 704.9, 706.2.1, 706.7, 711.3.2, 712.3.1, 712.4.1.1, 713.1, 713.4, 714.7, 715.2, 716.5.2
Proponent: Bob Eugene for Underwriters Laboratories
This code change allows for the use of UL 263 as an alternate to ASTM E 119 when testing fire-resistance rated glazing, among other things. 

Proposal # FS24
Code Section: 704.8, 704.12
Proponent: Gregory R. Keith, Professional Heuristic Development, for the Boeing Co.
This code change clarifies the provisions for the determination of opening protection requirements in exterior wall construction in a logical and understandable format. It reorganizes IBC provisions for exterior wall openings based on fire separation distance and degree of fire resistance protection of the opening.

Proposal # FS36
Code Section: 706.2.1, 703.5
Proponent: Bill Koffel, P.E., Koffel Associates for the Fire Rated Glazing Industry Consortium
This code change moves the system of labeling fire-resistance rated glazing to Section 703 to clarify that fire-resistance rated glazing may be used in assemblies other than fire barriers.

Proposal # FS101
Code Section: 715.2
Proponent: Bill Koffel, P.E., Koffel Associates Inc., for the Fire Rated Glazing Industry Consortium
This code change requires that fire-resistance rated glazing is to be labeled “W” wherever it is used, including fire doors and fire window assemblies.

Proposal # FS102
Code Section: 715.3, 715.4.3.2, 715.5, 715.5.1, 715.5.2, 715.5.8.1
Proponent: Bob Eugene for Underwriters Laboratories 
This code change allows for the use of UL 9 as an alternate to NFPA 257 when testing fire-protection rated glazing in fire doors and fire windows.

Proposal # FS108
Code Section: 715.4.4, 715.4.4.1
Proponent: William O’Keeffe for SAFTI FIRST
This change clarifies the code for consistency between the exceptions in 715.4.4 and 715.4.4.1. The exception to 715.4.4 was changed to read: “Exception: The maximum transmitted temperature rise is not required in buildings equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.1 or 903.3.1.2.”
The exception for 715.4.4.1 now reads: “Exception: The maximum transmitted temperature rise is not required in buildings equipped throughout with an automatic sprinkler system installed in accordance with Section 903.3.1.1 or 903.3.1.2.”

Proposal # FS113
Code Section: 715.4.6.1, 715.5, 715.5.3, Table 715.5.3, 715.5.4
Proponent: William O’Keeffe for SAFTI FIRST
This proposal originally intend that provisions for wired glass used in steel window frames be deleted, but was modified by the Fire Safety Committee. As a result, the provisions dealing with wired glass in steel window frames were not deleted, leaving IBC section 715.5.3 intact. 

Proposal # FS116
Code Section: 715.4.6.3.1
Proponent: William Koffel, P.E., Koffel Associates Inc. for the Fire Rated Glazing Industry Consortium
The change revises the code to refer to test standard NFPA 252 specifically, rather than just stating “test standard.” The code was also revised to correctly refer to the performance of such glazing as having fire-protection requirements rather than fire- resistance.

Proposal # FS118
Code Section: 715.4.6.4, 715.5.3
Proponent: William Koffel, P.E., Koffel Associates Inc. for the Fire Rated Glazing Industry Consortium
The code change adds a new section to 715.4.6 in the fire window section (715.5) to reference the appropriate safety glazing requirements of fire windows, separating those requirements from those of fire doors.

International Energy Conservation Code

Proposal # EC 5
Code Section: 101.4.3
Proponent: Chuck Murray, Washington State University for the Northwest Energy Code Group
Under this code change, glass-only replacements in an existing sash and frame must have a U-factor and solar heat gain coefficient (SHGC) that are equal to or lower than that which is being replaced.

Proposal # EC 17
Code Section: 104.2
Proponent: John Neff for the Washington State Building Code Council
This code change revises the required construction document information to include area-weighted U-factor and SHGC calculations.

Proposal # EC 25
Code Section: 202
Proponent: Julie Ruth for AAMA
This code change revises the definitions of “entrance door” and “storefront” to more accurately reflect these types of systems as they are commonly provided. The definitions now read: “Entrance Door: Fenestration products used for ingress, egress and access in non-residential buildings, including, but not limited to, exterior entrances that utilize latching hardware and automatic closers, and contain over 50 percent glass specifically designed to withstand heavy use and possibly abuse.” “Storefront: A non-residential system of doors and windows mulled as a composite fenestration structure that has been designed to resist heavy use. Storefront systems include, but are not limited to, exterior fenestration systems that span from the floor level or above to the ceiling of the same story on commercial buildings.”

Proposal # EC 122
Section: 202, 505.2.2.3
Proponent: John Neff for the Washington State Building Code Council
The code change defines the areas “under skylights” and those “adjacent to vertical fenestration” as being daylight zones. 

Proposal # 60
Code Section: 402.6
Proponent: Ronald Majette for the U.S. Department of Energy
This change removes the limit on solar heat gain for glazing in the marine climate zone. 

Proposal # EC 82
Code Section: 501.1, 501.2, 502.1.1, 502.1.2, 502.1.3-502.1.3.2
Proponent: John Neff for the Washington State Building Code Council
This code change allows building envelope compliance through an area-weighted average U-factor for the entire envelope and an area-weighted SHGC value for the fenestration area when the prescriptive provisions of the IECC for commercial buildings are used.

Proposal # EC 39
Code Section: 402.1.1
Proponent: Steven Ferguson for ASHRAE
This code change lowers the SHGC for glazed fenestration areas in climate zones one and two from .40 to .37, making them equal to those contained in Table 5.2 of ANSI/ASHRAE Standard 90.2-2004 Energy-Efficient Design of Low-Rise Residential Buildings.

Proposal # EC 95
Code Section: Table 502.3
Proponent: Garrett Stone, Brickfield Burchette Ritts & Stone for Cardinal Glass Industries
This code change eliminates the plastic and glass categories for skylights in the simplified prescriptive path for non-residential construction and establishes a single set of prescriptive values. This code change eliminates the values for plastics and modifies the glass U-factors in climate zones 1, 2 and 3 to reflect the same values as set for residential skylights. 

International Residential Code

Proposal # RB 64
Code Section: 303.7
Proponent: Rick Davidson, City of Hopkins, Minn.
This code makes exceptions to the provisions of the IRC for glazed openings intended to provide natural lighting. Exceptions include:
1. Required glazed openings may face into a roofed porch where the porch abuts a street, yard or court and the longer side of the porch is at least 65 percent unobstructed and the ceiling height is not less than 7 feet;
2. Eave projections shall not be considered as obstructing the clear open space of a yard or court; and 
3. Required glazed openings may face into the area under a deck, balcony, bay or floor cantilever provided a clear vertical space at least 36 inches in height is provided.

Proposal #RB 244
Code Section: Chapter 613.1
Proponent: Michael Fischer, Kellen Co. for WDMA
This code change revises general requirements for doors and windows installed in exterior wall systems. According to the proponent, the language contained inconsistencies in scope between the section heading and technical requirements contained in the text. The change resolves the scoping issues, and at the same time provides clear requirements for flashing.

Proposal # RB 311
Code Section: Chapter 43
Proponent: Standards Writing Organization
This section was updated to reference a number of ASTM standards, including the most recent versions of ASTM E 1886, Test Method for Performance of Exterior Windows, Curtain Walls, Doors and Storm Shutters Impacted by Missiles and Exposed to Cyclic Pressure Differentials; ASTM E 1996, Specification for Performance of Exterior Windows, Curtain Walls, Doors and Storm Shutters Impacted by Windborne Debris in Hurricanes; and ASTM F 2006, Standard/Safety Specification for Window Fall Prevention Devices for Non-Emergency Escape (Egress) and Rescue (Ingress) Windows.

Proposal # EC 54, Part II
Code Section: N1102.3.7, Table N1102.3.7
Proponent: Tom Culp, Birch Point Consulting LLC, for the AEC
This change adds an alternative method for complying with the residential fenestration requirements with equivalent energy performance and introduces an alternative method of compliance for residential fenestration in zones 6-8 that includes the benefit of solar heat gain in heating-dominated climates. It allows for slightly higher U-factors for glazing in these areas that also have SHGC within specific ranges. The maximum U-factor is 0.40, with a SHGC range of 0.51 to 0.54.

Proposal # EC 58, Part II
Code Section: N1102.5.1
Proponent: Vickie Lovell for 
AIMCAL Inc.
This code change deletes the performance limitation on residential fenestration in the IRC.

Proposal # EC 59, Part II
Code Section: N1102.5.1
Proponent: Craig Conner, Building Quality
This code change deletes the performance limitation on residential fenestration in the IECC.

Proposal # RB 72
Code Section: R308.4
Proponent: Rick Davidson, City of Hopkins, Minn.
This code change exempts glazing adjacent to the fixed panel of sliding door assemblies from the IRC’s safety glazing requirements.

Proposal # RB 87
Code section: R311
Proponent: Tom Rubottom for the Colorado chapter of the ICC
The code change creates a means of egress “definition” in the new Section R311.1; areas within the code that have previously addressed specific means of egress components or philosophy have been moved into new R311.1 subsections. R311.1 limits the means of egress to the grade at the required exterior exit door, clarifying that the IRC does not intend this path to be continuous to the public way. 

Proposal # RB 40
Code Section: Table R301.2 (2)
Proponent: Edward L. Keith for the APA, The Engineered Wood Association
This code change modifies Table R301.2 (2) so that the effective wind area is equal to the span length multiplied by an effective width. This will not be less than one-third the span length. For cladding fasteners, the effective wind area shall not be greater than the area that is tributary to an individual fastener. 

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