In all seriousness, I find submission of AsBuilts in this industry as the exception rather than the rule, and the likelihood of AsBuilt Calcs even more remote, absent a contractual obligation and an engineer either smart enough or PIA enough to followup.
Not saying they aren't a great idea for those whose systems don't closely resemble the original layout, just saying that it isn't exactly a mainstream issue. Absent buildings burning to the ground and/or people dying due to improper installation, we don't need to add the cost and if you want to see a contractor avoid something, how about taking the chance that their calc will indicate they need to go back into t a recently completed project and make changes! Now the building is occupied, now the drywall ceiling is up and tested- I can tell you the GC isn't looking to enforce since it'll cause hardship for all. George Church Rowe Sprinkler Systems, Inc. PO Box 407, Middleburg, PA 17842 877-324-ROWE 570-837-6335 fax [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Brad Casterline Sent: Thursday, March 03, 2011 9:17 AM To: [email protected] Subject: RE: As = L x S Something else you might want to keep in mind is the idea of "AS-BUILT CALCULATIONS". Say you calc an Ord. Haz. II at 104 SF/head because the heads are 6'-6" from one wall and 4'-0" from another. But there is a conduit at 4'-0". The fitter knows 130 SF max for standard coverage heads in Ord. Haz., so 5'-0" is fine. You might have a little trouble with the as-built calcs in this case! ******************************************* Good morning. Thanks to all of you for your great answers. I see this in my first training with AFSA in 2004 (great raining) but once you are in the field, you have a lot of questions. I see a lot of times some designers who use in all cases the maximum coverage per sprinkler to do their hydraulic calculations, and when I ask them about the "As", they tell me that us the maximum coverage (based on the hazard classification) is a "Best Practice" because you do not need to find what is the largest sprinkler coverage in the hole system. With this forum, now I know I always need to use the maximum "As" in my most hydraulic demanding area, and that value will be used for the calcs. Regards and thanks to all of you. Gerzayn Fuentes CEPI.mx Mexico Tel +52 (81) 17660800 _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
