Spray foam on steel??

[BrokenBackJack]

If they aren't ground blinds, you might want to spray your floors, if the stands are off the ground.

 

[KDM]

The floors are on 4X4's so I can move them. That close to the ground I think might be an issue with mice, dragging over terrain, and generally busting the foam all to bupkist with various stupidities I tend to perform.

 

[riverview]

when i sprayed put tin i covered with house wrap so the foam adhered to the house wrap instead of the tin.