Don’t Ruin the Foam Insulation
How to remove nails from vinyl that was installed over foil-faced rigid-foam insulation.
On a recent job, I found myself struggling to remove nails from vinyl that was installed over foil-faced rigid-foam insulation. The foam isn’t dense enough to pry against, but I found that using two molding bars (one has to have a notch) back to back allowed me to remove the nails without crushing the foam or siding. I simply squeezed them like pliers to remove each nail.
— Aaron Galley, Ludlow, Vt.
Edited and illustrated by Charles Miller
From Fine Homebuilding #265
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Or just use a wide spackling knife held against the siding and a flat pry bar to pull nails out .... The way in this article isnt practical to try to hold them and 'squeeze' them like pliers