We have a flat roof canopy in front of a strip mall whose structure is non combustible, flat roof with bar joists 4-5' on center and a metal pan roof. The front of the canopy is a façade that is nearly vertical but slopes out at the bottom, probably a 4 FEET on 12 INCH slope. The framing for the façade is all 2x4 with plywood and the ceiling of the canopy is all 2x4 with plywood - both of which are 2' on center. The height of this space varies due to the ceiling, but is approximately 7' tall.
According to table 8.6.2.2.1(a) I can space the heads at 225' with members over 3' on center. Since the ROOF structure is non combustible, would I consider this my MEMBERS and use 225 sq ft, or do I have to use the ceiling framing as the MEMBERS and be limited to 130 sqft? To be honest I would be great with 150 sq ft, but the 130 hurts the calcs due to the additional heads in the remote area. Thanks for the input. Greg McGahan _______________________________________________ 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)
