8' x 16' Signfoam

[Henry Petit]

I am looking for recommendations on how to reinforce the seams for a sign this size. It will have one horizontal seam and atleast one vertical seam. Or any other related input. Thanks.

 

[Marlene]

Lap joint it and attach a re-enforcement at the joint on the backside of the sign.

 

[k.a.s.]

Drill holes and put in some doll rods, then Gorilla Glue them together.

Kevin

 

[3dsignco]

We do it both ways as Marlene and KAS said except I just use Biscuts and West Systems. Your joint will be stronger then the material itself.
I would personally add some steel or alum. Stiffeners along the whole sign leanth as to not have it break some where else just from its own weight.

 

[wimbley]

Biscuit joiner...

and probond and then clamped... Leave over night and Voila! Definately have some braces on the backside on something that large!

Cheers!

 

[openwood]

what is the thickness of the panel? sometimes we will rout out the back of the sign and inlay ply-wood to support the foam and give it strength.I also biscut the panels together with marine grade epoxy.is the panel routed and/or sandblasted?

Good luck

Brian

 

[Richard Flint]

Too big of a panel not to have a solid rigid angle iron frame.

 

[Henry Petit]

The panel will be routed. It will attach to a wood frame on the roof of a building.

 

[Craig Sjoquist]

agrees with rich ... metal frame attach to sign with plywood panels & signfoam

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