Scott, Its either brick with metal covering it or it hollow with light steel H beam construction.
If its block underneath or if its steel I would drill all the way through and sandwich the wall on each side. We would use a Site Pro 1 WM1665 or SP250-6 with 2 pieces of 3 x 3 angle on the back side. If the wall is hollow just dandwich both sides of a vertical beam. You may need to notch out the metal for the mount to sit flush against the beam. If its block you just need to shim up the mount to accomodate the corrugated surface. Site Pro sells square backer washers that can be used for this. Bob Sent from my Verizon Wireless 4G LTE Smartphone -------- Original message -------- From: Scott Carullo <[email protected]> Date: 05/26/2013 10:09 AM (GMT-05:00) To: [email protected] Subject: [WISPA] Metal building parapet wall mount for 3ft dish question I've never disassembled a parapet wall on a metal building to see whats back behind the sheet metal that runs vertical on the roof side of the parapet wall, but I need to know whats back there and the best way to attach a 3ft licensed radio and dish and the mount needs to be beefy - as in welded galvanized mount that probably weighs 50 pounds itself. I'm going to need to tie into something substantial behind the flimsy wall sheet metal. I've mounted lighter loads to these walls but I just need this to stay put - it can't flex or move at all I have 3deg to work with on 11ghz and its out of town. Anyone know of a mount that works good for this or can tell me whats back in there? They must all be made similarly as every metal building I've seen is built the same. I have included a link to a photo showing exactly what it looks like. Dish needs to go next to the other jpole there - I have no idea what that is and I didn't put it there fyi :) Thanks, appreciate it. Link - http://flhsi.com/files/parapet.jpg Scott Carullo Technical Operations 855-FLSPEED x102
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