Standing seam: every fastener hidden
Standing-seam panels lock together at a raised seam and clip to the deck underneath, so no screw is exposed to the salt air. That is why it outlasts exposed-fastener metal on the coast, where the screws and their washers are the first thing to rust and leak. It is the metal roof we recommend for a primary residence, and the one on most of the new builds and estates in the county.
