Replacement metal roof....best method

[CliffordK]

I'm an old guy, and like to keep nomenclature straight. Very little standing seam is done any more, because it requires a tinner to solder all the joints. What people call standing seam is actually concealed fastener lock seam. It's good roofing. I used it on my shop.

Different styles. But, perhaps one should specify. They all have hidden fasteners of one sort or another.

My Knudson KR-24 does a crimped lock seam. Whereas the snap lock seam is far more popular today.

I have wondered how one repairs the crimped seam roofing if a couple of panels need replaced.