WORKING DRAFT OF COMMITTEE MEETING OUTPUT CONTENT NOT FINAL SUBJECT TO REVISION PRIOR TO LETTER BALLOT AND PUBLICATION OF SECOND DRAFT REPORT Document: NFPA 221 Revision Cycle: A2014 Meeting Date: 5/20/2013 Committee Activity: Input Stage This is a working draft, prepared by NFPA staff, to record the output generated at the Technical Committee s Second Draft Meeting. It includes draft copies of the Second Revisions and any Global Revisions. It is being made available to Committee members for the purpose of facilitating early review, particularly for those Committee members who may be seeking input from their respective organizations in preparation for the Letter Ballot of the Committee.
AND FIRE BARRIER WALLS - NFPA 221, May 20, 2013; Second Revision No. 7-NFPA 221-2013 [ Global Comment ] Revise equation in A.5.4 to refelct the Manunal of Style format. Submitter Full Name: Tracy Vecchiarelli Submittal Date: Mon Jun 03 12:25:28 EDT 2013 Committee Statement: Per the Manual of Style. Response Message: submittals.nfpa.org/terraviewweb/viewerpage.jsp 1/8
AND FIRE BARRIER WALLS - NFPA 221, May 20, 2013; Second Revision No. 1-NFPA 221-2013 [ Section No. 2.3.3 ] 2.3.3 ASTM Publications. ASTM International, P.O. Box C700, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959. ASTM E 119, Standard Test Methods for Fire Tests of Building Construction and Materials, 2012 2012a. ASTM E 814, Standard Test Method for Fire Tests of Through-Penetration Fire Stops, 2011a. ASTM E 1966, Standard Test Method for Fire-Resistive Joint Systems, 2007 (2011). Submittal Date: Mon May 20 12:39:09 EDT 2013 Committee Statement: standard date update Response Message: Public Comment No. 7-NFPA 221-2013 [Section No. 2.3.3] submittals.nfpa.org/terraviewweb/viewerpage.jsp 2/8
AND FIRE BARRIER WALLS - NFPA 221, May 20, 2013; Second Revision No. 6-NFPA 221-2013 [ Section No. 3.3.5 ] 3.3.5 Fire Protection Rating. The designation indicating the duration of the fire test exposure to which a fire door assembly or fire window assembly an opening protective assembly was exposed. Submittal Date: Wed May 29 10:08:37 EDT 2013 Committee Fire dampers also have a fire protection rating so the language should not be limited Statement: to just doors and windows. The definition of Fire Protection Rating should be extracted from NFPA 221 into NFPA 5000. Response Message: Public Comment No. 1-NFPA 221-2013 [Section No. 3.3.5] Public Comment No. 3-NFPA 221-2013 [Section No. 3.3.5] submittals.nfpa.org/terraviewweb/viewerpage.jsp 3/8
AND FIRE BARRIER WALLS - NFPA 221, May 20, 2013; Second Revision No. 2-NFPA 221-2013 [ Section No. 3.3.9 ] 3.3.9 * Grade Plane. A reference plane upon which vertical measurements of a building are based. See 4.10. Submittal Date: Mon May 20 12:46:58 EDT 2013 Committee Per Correlating Committee Note FR116, the committee has removed the definition of Statement: Grade Plane. The requirements for defining a grade plane are already included in section 4.10, which was added during the First Draft meetings. This change reflects what was done in NFPA 5000 as well. Response Message: Public Comment No. 2-NFPA 221-2013 [Section No. 3.3.9] Second Revision No. 4-NFPA 221-2013 [ Section No. 4.8.2 ] submittals.nfpa.org/terraviewweb/viewerpage.jsp 4/8
AND FIRE BARRIER WALLS - NFPA 221, May 20, 2013; 4.8.2 Minimum Fire Protection Rating. Opening Unless required otherwise by the applicable building code, opening protectives shall have a minimum fire protection rating as specified in Table 4.8.2. Table 4.8.2 Minimum Fire Protection Ratings for Opening Protectives in Fire Resistance Rated Assemblies Component Fire Resistance Rating Walls and Partitions (hr) Fire Protection Rating Fire Door Assemblies (hr) Fire Window Assemblies (hr) Elevator hoistways 2 1 1? 2 NP Vertical shafts (including stairways, exit, and refuse chutes) HC fire walls and fire walls 4 1 1 NP 2 1 1? 2 NP 1 1 NP See Sections 5.8 and 6.10 submittals.nfpa.org/terraviewweb/viewerpage.jsp 5/8 NP 3 3 NP 2 1 1? 2 NP Fire barrier 4 3 NP 3 3 NP 2 1 1? 2 NP 1 ¾ ¾ Horizontal exit 2 1 1? 2 NP Horizontal exits served by bridges between buildings 2 ¾ ¾ Corridors, exit access 1 1? 3 ¾ NP: Not permitted. Source: Table 8.7.2 Submittal Date: Mon May 20 13:09:35 EDT 2013 1? 2 1? 3 1? 3 Committee Table 8.7.2 in NFPA 5000 was expanded during the 2012 edition. Table 4.8.2 in Statement: NFPA 221 contains additional requirements for high challenge fire walls and 4 hour fire barriers. The language in the beginning of the section was revised to make
AND FIRE BARRIER WALLS - NFPA 221, May 20, 2013; Response Message: reference to adopted building codes so the new table in 5000 will apply if adopted. This is related to Committee Input CI2. Second Revision No. 5-NFPA 221-2013 [ Section No. 4.10 ] 4.10 Grade Plane The grade plane shall be established by calculating the average of the finished ground level adjoining the building at all exterior walls. When the finished ground level slopes down from the exterior walls, the grade plane shall be established by the lowest points within the area between the building and the lot line or, when the lot line is more than 6 ft (1.8 m) from the building, between the building and a point 6 ft (1.8 m) from the building. (copy from 5000) Submittal Date: Mon May 20 13:39:02 EDT 2013 Committee Statement: see notes Response Message: Second Revision No. 3-NFPA 221-2013 [ Section No. 5.16.2.1 ] submittals.nfpa.org/terraviewweb/viewerpage.jsp 6/8
AND FIRE BARRIER WALLS - NFPA 221, May 20, 2013; 5.16.2.1* The length and arrangement of end walls shall be in accordance with Table 5.16.2.1 and Figure 5.16.2.1(a) or Figure 5.16.2.1(b). Table 5.16.2.1 Wall Protection Height of Exposing Area Length of End Wall Protection ft m ft mm?40?12.2 6 1830 41 70 12.5 21 10 3050?71?21.6 14 4265 Note: Protection should consist of blank, fire-rated construction. Figure 5.16.2.1(a) End Wall Exposure Protection End Walls Tied to Structural Framing. Figure 5.16.2.1(b) End Wall Exposure Protection End Walls Not Tied to Structural Framing. Submittal Date: Mon May 20 12:56:17 EDT 2013 Committee There are two changes suggested for the Figures in this section. First, Figure Statement: 5.16.2.1(a) should be modified by changing the term "Fire-rated blank construction, freestanding" to "Fire-rated blank end wall construction". Second,, Figure 5.16.2.1(b) submittals.nfpa.org/terraviewweb/viewerpage.jsp 7/8
AND FIRE BARRIER WALLS - NFPA 221, May 20, 2013; Response Message: Committee Notes: Date May 20, 2013 May 20, 2013 should be modified by changing the term "Fire-rated blank construction" to "End wall fire-rated blank construction, freestanding". These are editorial changes made to correct errors in the figures. Submitted By EDITORIAL EDITORIAL There are two changes in the art for this figure that need to be addressed by editorial. There are two changes in the art for this figure that need to be addressed by editorial. Public Comment No. 5-NFPA 221-2013 [Section No. 5.16.2.1] submittals.nfpa.org/terraviewweb/viewerpage.jsp 8/8