The longest-lived roof we install, and the one a Tennessee summer argues for. A standing-seam panel sheds water on geometry rather than on a seal, and there is no exposed fastener to back out as the deck moves through forty freeze-thaw cycles a year.
Rutherford County is among the fastest-growing in Tennessee, and most of what we roof here is subdivision stock built inside the last twenty-five years — asphalt shingle at scale, on homes now reaching the age where the first replacement comes due. It is also the side of the metro that takes hail hardest.
Profile
Concealed-fastener standing seam
Service life
40–70 years for the material class
Slope
Down to 3:12 standing seam, lower with a mechanical lock
Hail
Dents without breaching — the panel stays watertight
Not over a solid deck and underlayment, which is how a residential metal roof is installed. The noise people remember comes from panels screwed straight to open purlins on a barn — no deck, no underlayment, nothing to absorb it.
Will it make the house hotter?
The opposite. Metal reflects rather than absorbs, and a light-colored or coated panel sheds radiant heat a dark shingle holds. It matters most in July, which is when it matters.
Can metal go over the existing shingles?
Sometimes, and we will tell you when it should not. A recover hides the decking, and if the decking is what failed you have paid to install a new roof over the problem.