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American Fire Sprinkler Association [http://www.firesprinkler.org/] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ AFSA Technical Update ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ A newsletter dealing with codes and other technical issues February 8, 2013 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ NFPA 13R - Shadowing The previous Technical Update covered the changes to shadowing in the 2013 edition of NFPA 13. This will address changes to references to shadow areas in the NFPA 13R standard. First, shadow area is defined in Section 3.3.10 as the dry floor area within the protection area of a sprinkler created by the portion of sprinkler discharge that is blocked by a wall or partition. New annex material was also added to the definition explaining that water discharged from a sprinkler does not travel in a straight line like a beam of light. Unlike NFPA 13 that does not place a fixed amount on shadow areas, the NFPA 13R does place limits on shadow areas. The cumulative dry areas are not to exceed 15 sq. ft. in the protection area per sprinkler. The 2010 edition allowed shadow areas but placed a limit on compartments of 800 sq. ft. or less. That limitation is gone in the 2013 edition. Section 6.4.6.3.3.1 says that shadow areas shall be permitted in the protection area of a sprinkler as long as the cumulative dry areas do not exceed 15 sq. ft. per sprinkler. This is an increase in area from the 2010 edition where it limited individual shadow areas not to exceed 3 sq. ft., summation of shadowed areas could not exceed 12 sq. ft. per compartment, and the maximum total summation of shadow areas not to exceed 30 sq. ft. per dwelling unit. The new criteria seems to be a more simplistic approach to apply. Section 6.4.6.3.3.2 allows shadow areas in corridors up to 2 ft in depth and up to 9 ft in length behind sidewall sprinklers. This is helpful for corridors where the doors indent from the corridor wall on which a sidewall sprinkler is to be located. A new Figure 6.4.6.3.3.2 was added for clarification in the standard. Section 6.4.6.3.3.3 deals with small areas created by architectural features such as planter box windows, bay windows, and similar features. No additional sprinkler protection is required where there is no additional floor area created by the architectural feature. When there is additional floor area created by an architectural feature, no additional sprinkler protection is required provided all of the following conditions are met: (a) The floor area shall not exceed 18 sq. ft.; (b) The floor area shall not be greater than 2 ft in depth at the deepest point of the architectural feature to the plane of the primary wall where measured along the finished floor; (c) The floor shall not be greater than 9 ft in length where measured along the plane of the primary wall; and (d) Measurement from the deepest point of the architectural feature to the sprinkler shall not exceed the maximum listed spacing of the sprinkler. The last part of this section clarifies that the hydraulic design is not required to consider the area created by the architectural feature. Annex A.6.4.6.3.1 is repeat material from the 2010 edition regarding shadow areas. New figures were added in the annex as Figure A.3.3.10 Shadow Area Created by Wall, Figure A.6.4.6.3.3.1(a) Example of Shadow Areas (SSU/SSP), and Figure A.6.4.6.3.3.1(b) Example of Shadow Areas (HSU) to clarify the intent in the application of shadow areas. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Residential Sprinkler Requirements by State AFSA receives requests on the updates on states that require residential fire sprinkler systems for one and two family dwellings. The website with that information can be viewed at http://www.firesprinklerinitiative.org [http://r20.rs6.net/tn.jsp?e=001vz1ibRD5UxXsRZde5ioQ2WJMKQIf7jQQQDabWy1RZ06PKtNBE4u92Hvoc3vUsIxu6DlYcaGKUwzH0HyykOtzMNZqU9d5VN8g71TDPScwTZEWBYa5TPfa_YyimlrYVp4V] and click on Legislation & Adoptions menu for a state by state listing. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ firesprinkler.org [http://r20.rs6.net/tn.jsp?e=001vz1ibRD5UxXE5R9S63v2_0GGA9PA0ve2e4eAI9uGIm0ZyIbcOJIXI7M14a_ah_Vrxttq72x7YFPMRq7ORCVgllKxMzcvFJZ4ddYVbB-D9b5ES2WLIg5PKQ==] Hosted by the American Fire Sprinkler Association ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Technical Update is prepared by the Technical Services Dept. of the AFSA: Vice President of Engineering and Technical Services Roland Huggins, a PE registered in fire protection engineering; Phill Brown, a NICET IV certified automatic sprinkler technician and NFPA Certified Fire Protection Specialist (CFPS) and Tom Wellen, a PE registered in fire protection engineering. This is provided with the understanding that the AFSA assumes no liability for this opinion or actions taken on it and they are not to be considered the official position of the NFPA or its technical committees. Copyright 2012, American Fire Sprinkler Association. All Rights Reserved ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ PDF Version PDF Link [http://r20.rs6.net/tn.jsp?e=001vz1ibRD5UxVklWAgnQohXXhMS4ylQNYnYDpX_KNNbmBLXcDzxC9GY85Tp6TUa5oSS6je7dEcL2j2no5JB-b39fLXnR_pxY6qPXd2kjmkmTRmLsbXOOUPf9p9HE4h-2_YBQKT5akVzfWGRtD6ZuzFXV3L-RzK6POVq_yH_YHTDfkEZUNSQ5e7lbX4RNrK8_ETNbEuDROgPaQ=] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Training Calendar AFSA Beginning Fire Sprinkler System Planning School February 25 - March 8, 2013 Check our calendar to view upcoming training. For details and/or to register, visit the AFSA Calendar [http://r20.rs6.net/tn.jsp?e=001vz1ibRD5UxUlJV0ghsChcnCkreTUw31wQu2w8lIdxcEhRItgVrUxfVXsNQq_s6WNQ3RfmEM9etr9evZMjAYtMu3FEc2SUE5tapowy4avKY1umTdptLsY3ygOfUnXQzneyrgJPJ4HansBnjGqKT_xnZmaQB2Rr3zJXWKwgWelvRNUOJlDlOlbaNnptcQ9fmRUVGW6GO7dG9WB21WiPg7uX4Kk-hN0QeZCVvTjoS526WhRrHK7E0Pigf1-Ji3Lkv9vy1wsU7lMybqRwVhbh3P9IDAGlAcIqKDA]. e-campus_logo [http://r20.rs6.net/tn.jsp?e=001vz1ibRD5UxU_ijil36Yrug6EdWlHm3P63hA6ghEOaioUOMiB5QbitBA3c0cyOE7Zv20kl-vlDajo2MKnlDcJK0IosmZw8S2fTyFkB0AB91sTyfwwNUzfpXmfuIZIO1fF] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Free Subscription to Sprinkler Age [http://r20.rs6.net/tn.jsp?e=001vz1ibRD5UxUWC5uw2LWvMba83duc5EkZ6sRywEmE7aCr8C6tkftR3-rpfqvz9XcPKmeLrxzE59coNI5-CgEpzYpnMqIRT0oISxA9nUb1ClIBC8xnzFohzT4HBsATpIkSz-78Na77ACPYbFTBBvm89xK1_R6wOvpkKd6KvPI93ME=] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Quality Contractor [http://r20.rs6.net/tn.jsp?e=001vz1ibRD5UxW_XCgIw3xa3UVLlurO1aOI7TEUTj80tha_B-c-uvOpciGCVCYoKn2zM5FGHOnYFWUtP9H9UG23tEQZ9lcqDpa9jpjj2MpURHfBL_GEMUK8Ey6Gd497dOoIULSfYYmbZ37RSgcqCnXSh_S2KnC6U0mTIQ9YE07K3CA=] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Quick Links Firesprinkler.org [http://r20.rs6.net/tn.jsp?e=001vz1ibRD5UxXE5R9S63v2_0GGA9PA0ve2e4eAI9uGIm0ZyIbcOJIXI7M14a_ah_Vrxttq72x7YFPMRq7ORCVgllKxMzcvFJZ4ddYVbB-D9b5ES2WLIg5PKQ==] AFSA Calendar [http://r20.rs6.net/tn.jsp?e=001vz1ibRD5UxUlJV0ghsChcnCkreTUw31wQu2w8lIdxcEhRItgVrUxfVXsNQq_s6WNQ3RfmEM9etr9evZMjAYtMu3FEc2SUE5tapowy4avKY1umTdptLsY3ygOfUnXQzneyrgJPJ4HansBnjGqKT_xnZmaQB2Rr3zJXWKwgWelvRNUOJlDlOlbaNnptcQ9fmRUVGW6GO7dG9WB21WiPg7uX4Kk-hN0QeZCVvTjoS526WhRrHK7E0Pigf1-Ji3Lkv9vy1wsU7lMybqRwVhbh3P9IDAGlAcIqKDA] Buyer's Guide [http://r20.rs6.net/tn.jsp?e=001vz1ibRD5UxUO9LBiSNYRMx-lMUyQSYYDSjTbctw6xXZ9XDk61wYhFoRgr9bSXZ6bdFJI8oFuXMY7J8-OUqc43dR2BKclkTvZs-q4iTRVzBz76CMdSowbELmM-SD-b8BbK1Wc9ilaM_as8OwNd10nMQ==] Join AFSA Video [http://r20.rs6.net/tn.jsp?e=001vz1ibRD5UxV-4tvp7-4qdYe4OON-vttcOtK-jj1PpQ6BesZI42pXnQJqjYUpvTGLVllmxorVI942XLfLlZBrXsezegVJOYg1V0VPDXimXJf_6ukuZh7RHWBxTUXFGDSHck7v6zQVTdL4R-0f9WoJu_Km06TY7Tuq] National [http://r20.rs6.net/tn.jsp?e=001vz1ibRD5UxVF5fFl46o-VU9SjlaOdewo2_UpZ3ntsCwxiohHe3JDfmerXUiTWUWkJiYzVpgS3KV6ux3f4rLlkCfzQoPsw-dadTb_5kMLQSf8-Enyaaqyew==] Scholarship Contest [http://r20.rs6.net/tn.jsp?e=001vz1ibRD5UxVF5fFl46o-VU9SjlaOdewo2_UpZ3ntsCwxiohHe3JDfmerXUiTWUWkJiYzVpgS3KV6ux3f4rLlkCfzQoPsw-dadTb_5kMLQSf8-Enyaaqyew==] OSHA Alliance [http://r20.rs6.net/tn.jsp?e=001vz1ibRD5UxW-xBoQ0mTJeWuv1mP5_tm76MsvxhSwHUmggaBTwelL3kpl_chhneAYntOUs-GPlUvb3lNViTl7baEJcDuubLaYfA-ezlrHttXLchdFKzi5efrfmNizs5lUC-2ln6r8lurUh_y833OB_w6_RE6R8B0i] Technical Services [http://r20.rs6.net/tn.jsp?e=001vz1ibRD5UxUp8Rp6eCStl_OpGo4nWkNg3CScHwxMCgzJ2CtAR6824gIgMyUax8IIbzBSG2XqJxYX9EpX9ehwWj7u7Ci4SnInWeC0ArUhLDUzuVoxMHiilVIZXUtQGAV9YjhjXYWuh0c=] Informal Interpretation Request Form [http://r20.rs6.net/tn.jsp?e=001vz1ibRD5UxXlo_-CnH5TX92w7RayBgPK-p7JVQBAxg1JTuv-G0l8G3UP7-TstagyFp4XM0YQ0fEg628rmqhvkHHtplmxgq-I4JaN0QFoBR8qDDxCPt2AYYNbD5YX3W2cgs_Roxsx523x45fIqCOARt_VvVdqd2KBvXx4HIBz56Y=] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Join Our Mailing List [http://visitor.constantcontact.com/email.jsp?m=1102312387686] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Forward email http://ui.constantcontact.com/sa/fwtf.jsp?llr=gdnaptcab&m=1102312387686&[email protected]&a=1112409344597 This email was sent to [email protected] by [email protected]. 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