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Plate Embedment Issue w/Hot-Dipped Truss Plates

Plate Embedment Issue w/Hot-Dipped Truss Plates

Plate Embedment Issue w/Hot-Dipped Truss Plates

(OP)
Hi, all. I'm new to this forum, so if my question has been asked recently, feel free to point me in that direction rather than rehashing it.

The company I design for is currently fabricating trusses for a large manure facility, so we are utilizing Hot-Dipped Galvanized truss plates to reduce the inevitable corrosion. The issue our plant is having with these is in getting proper embedment of the teeth. Out in-house QC personnel is showing several plates that just refuse to seat as they should. It appears that the 'slag' on the teeth is peeling off during the rolling process and getting wedged in between the lumber and the body of the plate. No amount of re-rolling the truss helps to seat the plates any better.

Is there anyone out there that has experienced this and came away with a decent solution? ... Any help would be appreciated.

RE: Plate Embedment Issue w/Hot-Dipped Truss Plates

Have ya talked to the plate manufacturer? Maybe they've come up against that before.

I recall a couple of times we used typical plates in buildings that were to be used for fertilizer, with the stipulation that the plates be coated with coal tar epoxy (I think) after installation.

RE: Plate Embedment Issue w/Hot-Dipped Truss Plates

After the plates are installed, have you considered recoating the imbedded plates with zinc base altho. the teeth coating have peeled off at least the zinc coating will seal off any opening in the wood that would let contaminants get to the exposed metal on the teeth. I have no idea if it is a suggested method.

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