He intent is to use either 8.7.7 or 8.8.7 for large pockets. The volume of the pocket seems more important than the depth.
A 4x4x40-50' pocket should not need sprinklers next to glass windows. Art Tiroly ATCO Fire Protection 24400 Highland Rd CLE 44143 216-621-8899 216-570-7030 cell From: Sprinklerforum [mailto:[email protected]] On Behalf Of Ed Kramer Sent: Thursday, August 04, 2016 3:13 PM To: [email protected] Subject: RE: Ceiling pockets If you qualify, you might be able to use 8.8.7.3. Note the wording ". . and similar pockets." Section 8.5.7 doesn't limit the depth to 3'. Ed Kramer Bamford Fire From: Sprinklerforum [mailto:[email protected]] On Behalf Of Art Tiroly Sent: Thursday, August 04, 2016 11:13 AM To: [email protected] Subject: Ceiling pockets In section 8.8.7 sprinklers may be omitted from 1000 Cu.Ft. ceiling pockets. This large volume is allowed but is further restricted by a 3 Ft. maximum pocket height. I have long narrow pockets along high windows with a new drop ceiling that has a pocket 4 Ft. above the new ceiling. The volumes are less than 1000 Cu.Ft. I don't understand the restriction to 3 Ft. since the air volume seems to be the relevant restriction. Do I need to add sprinklers to a ceiling pocket along the windows when I have floor coverage. Art Tiroly ATCO Fire Protection/Tiroly 24400 Highland Rd CLE 44143 216-621-8899 216-570-7030 cell <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai gn=sig-email&utm_content=emailclient&utm_term=icon> Image removed by sender. Virus-free. <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai gn=sig-email&utm_content=emailclient&utm_term=link> www.avast.com --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus
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