Question on best way to construct a sign

[GAC05]

Hi all,
I have a request from a customer to do a display on the front of a Car dealership.
They want them offset from the building and contour cut around some images of vehicles.
We do a ton of this type work but it has all been interior display, so the materials & framing are mostly lightweight & stay up only as long as the promotion lasts.
I could use some pointers on doing this outdoors.
Weather is a little rough here - high humidity, heavy winds once in a while with lots of heat and sun - but no worries about freezing.
There are almost no wooden framed buildings or houses here - everything is concrete or steel.
I'm thinking print on routed metal with aluminum square tubing for framing/runners to provide the offset.
There is no local suppler for polymetal type panels but I could bring in a shipment in if needed.
Best I could buy locally would be aluminum sheets up to about 3/16".
There are shops here with tables big enough to do the routing of the aluminum.
The images will be larger than can fit on a single 4x8 so I'll need to do some joining of the panels.
The building face is smooth concrete.

So any words of wisdom from the list?

thanks
wayne k
guam usa

 

[visual800]

routed metal with aluminum framing just as you said should suffice

 

[J Hill Designs]

although .080 aluminum should suffice. 3/16 would be a tad heavy

 

[rjssigns]

Flat against the building or projecting? Of course where I'm at it doesn't matter. Requirements call for materials/construction to withstand 30lbs. per square foot wind load. Check local codes. We had to specify fasteners, placement etc...

 

[Andy D]

although .080 aluminum should suffice. 3/16 would be a tad heavy

Agreed, the thickest we ever go on aluminum for these type of signs is .125 but .063 - .090 is the norm... but then again,
I don't know your area, so I guess go with what ever is typically done there...