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Hi, We are discussing in office about traverse flue spaces in racks. Accorrding to NFPA 13 traverse flue spaces between loads and at rack uprights are required and shall be min. 6" In attachment you can see drawing with 3 option how we understand this description. What solution is corect...

I have a question about little skylights in warehouse area. In warehouse area are ESFR K200 sprinklers. Some of skylights them are equipped with smoke vent feature. The skylights are 3,75m2 area (1,5mx2,5m) and are slightly more than 3,0m2 from NFPA13 edition 2010 point 8.5.7.1. The distance...

Hi, I have installation with 120 ESFR sprinklers. Can I use a glicol medium with ESFR sprinklers according to NFPA13? Joanna

Hi, Is it possible, according to NFPA13, fitting to metal deck roof? I have DN40 branch lines and I want to fit they to metal deck roof. The metal roof type: http://www.metaldeck.com/n24.html fittings...

I need to ask You for Your opinion in following matter. We are finishing electronics factory building. We equipped this factory with sprinkler installation (intensity 7,5 mm/m2) connected with internal hydrants system. Now investor wants us to do drencher (dry, open) installation outside – to...

Hi, I have a question about hanging to trapezoid sheet. We will do a sprinkler installation in Poland according NFPA. Can we hang sprinkler pipe DN65 to trapeze sheet? I will use trapeze ceiling fixing. Could you show me any record in NFPA13 which say about hanging to trapeze sheet/ceiling...

Hi, I have a project, where I have double-racks with solid shelves. The solid shelves are 40cm height. Area of single shelf is 1,10mx2,70m=2,97m2. The rack is built from 6 double shelves and is 16,75m long. And my question is: According to NFPA13:2007 16.1.6.1 the shelving area (64ft2 =...

Hi, I've got a problem with building's hight. The first layer of deck is metal deck,trapezoid sheet. There is installed ESFR system. The distance from floor to the bottom of sheet is 13,7m. The height of trapezoid sheet is 135mm. And it is my question: For ESFR sprinklers the maximum hight of...

on first sorry for my english :) This is my first question on this forum. I have problem with my design The object is a warehouse and cutroom of poliuretans foam(?). This product is used to make furnitures. I think this is plastics group A, solid piled or palletized. From NFPA13 7-2.3.2.2...