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Home My WebLink About2004-WI Alternate Standard Evaluation STATE OF WISCONSIN DEPARTMENT OF COMMERCE RANDALL R DAHMEN, P.E. ENGINEERING CONSULTANT Evaluation # I 200406 -A BUREAU OF INTEGRATED SERVICES DIVISION OF SAFETY AND BUILDINGS rit 201 W. WASHINGTON AVE, 4' FLR TELEPHONE: (608) 266 -3162 y e FA P.O. BOX 7162 FAX (608) 267 - TTY: (608) 264-877 MADISON, WI 53701-7162 E -MAIL: rdahmenOcommerce.state.wi.0 ;ion 201 West Washington tivei ue P.O. Box 2658 Madison, WI 53701 -2658 Wisconsin Altern to Standard Evaluation Standard Section 716.6.2 International Building Code [IBC] - 2003 • II SCOPE OF EVALUATION • The alternate provision found in se tion 716.6.2 of the 2003 version of the International Building Code, has been evaluated for compliance wit certain fire - resistance rated construction requirements of the current Wisconsin Commercial Buildin Code (WCBC), Chapters Comm 61 -65. Pursuant to s. Comm 61.61 the alternate standard and method ogy as described below is approved for use in the State of Wisconsin to satisfy the intent of the membrane enetration requirements under IBC s. 715.6.2 of the Wisconsin Commercial Building Code. This evaluation does not include th review for compliance to provisions of the current Wisconsin Commercial Building Code (W BC), other than those specifically referenced above. The use of this alternate standard and methodology is subject to the description, limitations and conditions described in this evaluation. DESCRIPTION AND USE IBC Section 715.6.2 of the Wiscon in Commercial Building Code requires specific protection of duct systems penetrating the ceiling membrane o horizontal assemblies. The section includes several specific provisions that can be utilized as an alternativ to shaft enclosure protection. The specifics include: • When an approved ceiling radi tion damper is installed at the ceiling line where a duct system penetrates a ceiling. • When an approved ceiling radia ion damper is installed at the ceiling line where a diffuser with no duct attached penetrates a ceiling. The provisions found in section 716. .2 of the International Building Code - 2003 edition, include an additional exception outlining where an appro ed ceiling radiation damper is not required. SBD -5863 (R. 10/00) • COMMERCE Alternate Standard Evaluation No. 200320 -A Page 2 In summary, the additional provision indicates ceiling radiation dampers will not be required under the following conditions: • Where the exhaust duct is protected in accordance with the limitations outlined in the membrane penetration portion of the code section governing penetrations. • Where the exhaust duct is located within the cavity of a wall. • Where the exhaust duct does not pass through another dwelling unit or tenant space. When using the alternate standard, use exception 1 of section 711.4.2, from the International Building Code — 2000, where the 2003 text refers you to section 712.4.2. LIMITATIONS /CONDITIONS When this alternative methodology has been utilized in the design of a project, a statement identifying that use shall be included with the project construction documents, including the Wisconsin Alternative Standard Evaluation number referenced above. Pursuant to s. Comm 61.61(7), the department may reexamine an approval and issue a revised approval at any time. This approval will be valid through March 25, 2009, unless modifications are made to the alternate standard and methodology or a re- examination is deemed necessary by the department. DISCLAIMER This approval addresses only the specified applications for the alternate standard and does not waive any code requirement not specified in this document. Approval Date: March 25, 2004. By: James B. Smith, P.E. Program Manager Safety and Buildings Division C: \TEMP\Product.Altemate Standard Approval shafts and ceiling radiation dampers - final.doc FIRE - RESISTANCE -RATED CONSTRUCTION T 716.5.4.1 Corridors. A listed smoke damper designed to where subjected to ASTM E 119 time - temperature resist the passage of smoke shall be provided at each conditions under a minimum positive pressure dif- point a duct or air transfer opening penetrates a corridor ferential of 0.01 inch (2.49 Pa) of water at the loca- enclosure required to have smoke and draft control doors tion of the penetration for the time period in accordance with Section 715.3.3. equivalent to the fire - resistance rating of the con- struction penetrated Exceptions: 5. Grille openings located in a ceiling of a fire- resis- 1. Smoke dampers are not required where the tance -rated floor /ceiling or roof /ceiling assembly building is equipped throughout with an ap- shall be protected with a ceiling radiation damper proved smoke control system in accordance in accordance with Section 716.6.2. with Section 909, and smoke dampers are not necessary for the operation and control of the 716.6.2 Membrane penetrations. Where duct systems system. constructed of approved materials in accordance with the International Mechanical Code penetrate a ceiling of a 2. Smoke dampers are not required in corridor fire-resistance-rated floor /ceiling or roof /ceiling assembly, penetrations where the duct is constructed of shaft enclosure protection is not required provided an ap- steel not less than 0.019 -inch (0.48 mm) in proved ceiling radiation damper is installed at the ceiling thickness and there are no openings serving the line. Where a duct is not attached to a diffuser that penetrates corridor. a ceiling of a fire - resistance -rated floor /ceiling or roof /ceil- 716.5.5 Smoke barriers. A listed smoke damper designed ing assembly, shaft enclosure protection is not required pro - to resist the passage of smoke shall be provided at each point vided an approved ceiling radiation damper is installed at a duct or air transfer opening penetrates a smoke barrier. the ceiling line. Ceiling radiation dampers shall be tested in ' Smoke dampers and smoke damper actuation methods shall accordance with UL 555C and constructed in accordance comply with Section 716.3.2.1. with the details listed in a fire - resistance -rated assembly or Exception: Smoke dampers are not required where the shall be labeled to function as a heat barrier for air - handling ent and the ducts are constructed of steel. outlet/inlet penetrations in the ceiling of a fire- resis- • m an in ducts are limited to a single smoke compart- tance -rated assembly. Ceiling radiation dampers shall not be ent u required where ASTM E 119 fire tests have shown that ceil- 716.6 Horizontal assemblies. Penetrations by ducts and air ing radiation dampers are not necessary in order to maintain transfer openings of a floor, floor /ceiling assembly or the ceil- the fire- resistance rating of the assembly. Ceiling radiation ing membrane of a roof /ceiling assembly shall be protected by dampers shall not be required where exhaust duct penetra- a shaft enclosure that complies with Section 707 or shall com- tions are protected in accordance with Section 712.4.2 and ply with this section. the exhaust ducts are located within the cavity of a wall, and h another dwelling unit or tenant space. do not pass through 716.6.1 Through penetrations. In occupancies other than P g Groups 1 -2 and I -3, a duct and air transfer opening system 716.6.3 Nonfire resistance - rated assemblies. Duct sys- constructed of approved materials in accordance with the tems constructed of approved materials in accordance with International Mechanical Code that penetrates a fire - resis the International Mechanical Code that penetrate tance -rated floor /ceiling assembly that connects not more nonfire- resistance -rated floor assemblies and that connect than two stories is permitted without shaft enclosure protec- not more than two stories are permitted without shaft enclo- tion provided a fire damper is installed at the floor line. sure protection provided that the annular space between the Exception: A duct is permitted to penetrate three floors assembly and the penetrating duct is filled with an approved or less without a fire damper at each floor provided it noncombustible material to resist the free passage of flame meets all of the following requirements. and the products of combustion. Duct systems constructed 1. The duct shall be contained and located within the of approved materials in accordance with the International cavity of a wall and shall be constructed of steel not Mechanical Code that penetrate nonfire- resistance -rated less than 0.019 inch (0.48 mm) (26 gage) in thick- floor assemblies and that connect not more than three stories are permitted without shaft enclosure protection provided ness. that the annular space between the assembly and the pene- 2. The duct shall open into only one dwelling unit or trating duct is filled with an approved noncombustible mate - sleeping unit and the duct system shall be continu- rial to resist the free passage of flame and the products of ous from the unit to the exterior of the building. combustion, and a fire damper is installed at each floor line. 3. The duct shall not exceed 4 -inch (102 mm) nomi Exception: Fire dampers are not required in ducts within nal diameter and the total area of such ducts shall individual residential dwelling units. not exceed 100 square inches (0.065 m any 100 square feet (9.3 m of floor area. 716.7 Flexible ducts and air connectors. Flexible ducts and 4. The annular space around the duct is protected air connectors shall not pass through any fire-resistance-rate( with materials that prevent the passage of flame assembly. Flexible air connectors shall not pass through any and hot gases sufficient to ignite cotton waste wall, floor or ceiling. . -- 2003 INTERNATIONAL BUILDING CODE®