Having trouble viewing this email click here http://campaign.r20.constantcontact.com/render?llr=gdnaptcab&v=001B7Ca3ME3LkJYYAoTXOBlRApSw_1XdBZhIePbunK0lW_MnJMYduPUIlVFv0grBwlp3k8uhGuzz7-viWuKCW7n9E8PFKxD1yNrvrCNn9MoXDsiqJIJACymYhk3DRk9RLOl American Fire Sprinkler Association [http://r20.rs6.net/tn.jsp?llr=gdnaptcab&et=1103712710818&s=13010&e=001kYYHgT48Vb8saVQQ4MmE8pe8Jjf0clNxr2fpIbPbcwI9zv80VG2r0DDCKma-SN1TX4468BI089qPTzkWYODqp7Sev9QbdF_doyAewEgjYpdioen_w6Bh_Pw5R1Rogtem]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
AFSA Technical Update November 21, 2008 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ A ceiling cloud obstruction attached to a wall is provided over an entry door that measures 15 ft by 3 ft 11 in. When the measurement is taken from the doorjamb, the distance is 4 ft 1 in. where the AHJ is requiring a sprinkler under the cloud. Do we measure the width of the obstruction from the wall or the door jamb? We have reviewed 13, 2007 Edition as the applicable standard. Our informal interpretation is that when architectural features such as windows and doors create additional floor area, the distance is measured to the door or window surface. This issue was clarified in the 2007 Edition in Section 8.5.3.2.4 where it states, "The distance from the wall to the sprinkler shall be measured to the wall when sprinklers are spaced near windows and no additional floor space is created." Since the door jamb creates an additional floor space, the distance is measured from the side of the obstruction (ceiling cloud) to the side of the door jamb. Thus an additional sprinkler is required by Section 8.5.5.3.1 since the obstruction width is greater than 4 ft. This is supported by the NFPA 13 Handbook text that states, Paragraph 8.5.3.2.4 applies when the wall is represented by a window. Where the window in the wall is set back from the inside surface of the wall, the distance is measured to the wall, and not to the glass surface of the window where no additional floor area is created by the window. Where additional floor area is created by the window, the distance is measured to the glass surface of the window. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Hydraulic Calculations - Part 3 is Here Part 3 of the Hydraulic Calculations series on eCampus! This 2-hour interactive online course is the third in a series covering the topic of hydraulic calculations for fire sprinkler systems. For more information, click here [http://r20.rs6.net/tn.jsp?llr=gdnaptcab&et=1103712710818&s=13010&e=001kYYHgT48Vb_AylL3ERqSrGekZvHYBRshHuCx75h4ldgceegUJs6GoMICJQz-vr3Cts1bNQwoKrNQcFuXTvzqRN8N7_COJhd6evKAxFYPgPN-DVmxcrkr85T0KdnsbcFycQgzRsAN4VTHplXzRbLoBw==]to explore the Fire Sprinkler e-Campus. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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 degreed fire protection engineering technologist. 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 (c) 2008, American Fire Sprinkler Association, 12750 Merit Drive, Ste 350, Dallas, TX 75251. Voice (214) 349-5965 ext 124 or Fax (214) 276-0908. All rights reserved. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Mark Your Calendar! Changes to NFPA 13 Thursday, Dec. 18, 2008 Phone seminar For details and/or to register, visit the AFSA Calendar [http://r20.rs6.net/tn.jsp?llr=gdnaptcab&et=1103712710818&s=13010&e=001kYYHgT48Vb8KfPicpMxRZEWX7TKpRvQvA0Q91udIPMpI8aU1nd4vRc6kcsdnScXbtvsNuKA_raFLY1cxW4vX8_NyW6seu5bjKa6teEriTitTUTBd37i7JGA2QMDZjvMVUIm3NMbvGk3S2Xb4W_K7L2mH7X0kJOKxnRrcrXVkZD3DMGafktOFLRL--tcGo5GpDnCEpQmmG5Umu9nAOKKpjRZ5_5M7bgnAKtWjBl2k96zmDkCUMPoABXGfvsVkzEiqUYcGVgrvSXPIIiMvWJJ4LuSGLDyvhcyQ]. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~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=1103712710818 This email was sent to [email protected] by [email protected]. Update Profile/Email Address http://visitor.r20.constantcontact.com/d.jsp?llr=gdnaptcab&v=001bAhAGGXw8y_kvRx4AvcwfUNM_21h39IjFe0KGAz4u3JYc49_k0QjoiXV4MDF9SnI&p=oo Instant removal with SafeUnsubscribe(TM) http://visitor.r20.constantcontact.com/d.jsp?llr=gdnaptcab&v=001bAhAGGXw8y_kvRx4AvcwfUNM_21h39IjFe0KGAz4u3JYc49_k0QjoiXV4MDF9SnI&p=un Privacy Policy: http://ui.constantcontact.com/roving/CCPrivacyPolicy.jsp Email Marketing by Constant Contact(R) www.constantcontact.com American Fire Sprinkler Association | 12750 Merit Drive, Suite 350 | Dallas | TX | 75251 _______________________________________________ Sprinklernotes mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklernotes
