Sprinklers, pigeons, chicken coop wire and spikes... and bird droppings.

[SprinklerDesigner2]

The building is 20' high, 8" bent metal purlins, metal roof deck with rigid metal frames and open sides.

Pigeons have decided to make a good part of this their coop and with droppings it's getting pretty nasty. I was out there earlier today and it looks like Alfred Hitchcock's "The Birds". Must have been 20 pigeons gathered in one place, amazing really.

I suggested shooting them but that idea didn't go over well.

Sprinklers are upright with pipe 8" below the bottom of the purlins as we are all used to seeing.

The owner asked me about placing chicken coop wire below the sprinkler lines... it's the thin gauge wire with large openings so even if the wire was attached to the bottom of the purlin so it was close to the sprinkler pipe I don't see how it could adversely affect the sprinkler discharge.

Another solution would be stainless steel bird spikes

http://www.birdbgone.com/products/bird-spikes/stainless-bird-spikes.html

attached to the sprinkler pipe. I know, nothing attached to the sprinkler pipe but this isn't a problem we have to deal with every day.

 

[cdafd]

Follow the open grid requirements

The barrier can't be put on too of the pipe ?

 

[stookeyfpe]

SD2

I am assuming this is OH1 or OH2 system - nothing like a CMSA or Suppression mode system.

I think I would prefer the chicken coop wire. With the spikes, I would really worry about their height obstructing the discharge pattern. How is the AHJ feeling about this?

 

[SprinklerDesigner2]

Stookey,

It's a FM Global risk so I am going to give the account rep, who is an FPE and a great guy to work with, a call. I guess I should have done that first but I wanted to lay it out here in case anyone else ran into something similar.