Trying to paint this picture with text.
I have an 18'-6" wide x 40' long rock wall floor plan, ceiling is an all glass skylight starting at 42' to 46' (about 19' along the slope) with the rock wall against the low side. The rock wall is 40' tall for 1/3, 13' tall middle 1/3, 37' tall for 1/3. At the floor, the wall varies on width extending out to about 9' at the top creating an overhang anywhere from 4'-9'. The belay points at the top have a 6" to 12" lip extending back over the wall (covered). The tops of the two high areas are open, minus the overhangs. The rock wall is a fiberglass over a metal lathe, construction of the wall is a type IIB. There are access panels and access ladders in the space behind the wall so storage behind the wall is for certain. So, the plan is to have EC sidewalls at the high side of the skylight spraying down the slope. The top of the walls are greater than 18" below the glass (almost 4') where they occur so they are not floor mounted obstructions per NFPA. We will have uprights beneath the 13' level as this is one large shelf to continue up the other 2 walls. My question is can I assume that the spray will both extend over and into/down the cavity created by the wall (behind) and also spray to the floor beneath the overhang created by the wall as it extends past vertical (the 4-9' distance)? I cannot use SC-HSW because the floor area will not be covered and it would require a 2nd line, and would definitely be an obstruction for the overhang. Pendents are out because the skylight steel will not support the piping and the overhang again and the Arch is having a conniption about the pipe where we can install it. It looks something like this..the EC sidewall would be to the lower right side spraying down and towards the wall http://eldowalls.com/wp-content/uploads/2008/05/modgeckoxlphantom-web.jpg Happy 4th! D _______________________________________________ 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)
