I have to get a new roof for a manufactured house (no attic). The 1 guy talked about using metal said it would cost more to buy but cheaper to install. I have some wood to be replaced also. My question is should i put the metal on top of the shingles except where the repair will be? On the back there is 6 or so metal vents the guy said remove those and use a ridge vent.I have to buy the roof from wherever i want and then pay the guy to install it. What about the ice dams should i have those? We don't get much anything here (we did have 20 inches this yr at 1 time). Do you guys like/recommend metal and ice dams etc thanks
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