Birdcage has less pipe, but you will have to drill, fire caulk and nail plate each floor. You'll have to decide which is cheaper for your field staff to perform. You didn't mention which standard you're in, but if it is 13, you'll have to zone each floor separately anyways while the upper floor can be birdcage from the floor below.
When you say joist, do you mean solid dimensional lumber or TJI's, because I'd avoid stuffing pipe through that like the plague. Taylor Schumacher Security Fire Sprinkler<http://www.j-berd.com/> 1 Industrial Blvd | Sauk Rapids, MN 56379 Office: 320.656.0847 | Direct: 320.640.7050 From: Brian Harris <bhar...@bvssystemsinc.com> Sent: Friday, June 30, 2023 8:41 AM To: sprinklerforum@lists.firesprinkler.org Subject: [Sprinklerforum] Residential Layouts Caution: This email originated from outside your organization. Please take care when clicking links or opening attachments. I do a residential/apartment project about once every couple years so each time it's like starting from scratch. For you guys that do these a lot which way is preferred; running mains and branchlines in joist with pendent heads on the first floor and then "bird cage" vertically with sidewalls on the upper floors or mains and branchlines all floors with pendants? Brian Harris, CET BVS Systems Inc. bvssystemsinc.com<http://bvssystemsinc.com/> Phone: 704.896.9989 Fax: 704.896.1935
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