[Belmont Resident]

I also would highly recommend metal. It comes in a variety of colors to match almost any application.
Also I’ve heard the same thing about recoating. It does take years away from the life of the product on top and is no longer recommended.
I can say I have had one of my customers use Affordable Metal roofing and they did a great job, but I have no other knowledge of them.
I will say I heard enough bad things said via homeowners and other contractors that I would not recommend Total Concepts Roofing in Laconia.
If you do go shingles I would recommend using ice & water shield on as much of the roof as you can. Overkill, maybe but it is self sealing so you should never have to worry about leaks. I us it when ever I replace siding on my house. I go 3 feet up from the ground with this product.
One drawback to metal is you cannot walk on it in the winter. I found this out the hard way. I used it on a shed dormer. Big mistake, not enough pitch to shed snow. This summer I’m removing the metal and installing a rubber roof.
Good luck.