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Old 01-28-2012, 12:38 PM   #16
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Metal roof questions


I definately would have gone the metal roof myself if a quality one wasn't over 3 time the cost of an asphalt roof.

You do need to get a quality roofer experienced in metal. One of the metal quotes I got was considerably less than other metal quotes, but when questioning the contractor, he seemed unconcerned with attic ventilation and simply wanted to install the metal roof right on the existing shingles. Covering up all the venting.

We ended up getting the asphalt with a ridge vent on all ridges. happy so far.

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Old 02-03-2012, 12:02 PM   #17
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Metal roof questions


Metal roofs in snowy areas can definitely have their benefits, they can also have their disadvantages. A metal roof will give you thermal advantages but also cause minor issues like snow guards popping off. Most residential roofs won't have this issue though. If you're running into issues such as ice dams - you can install a heat trace cable to prevent ice from building up. My advice, hire a professional roofer in your area, and one that specializes in metal roofs, not asphalt. Also, pay attention to the gauge roof their putting on, lighter guages will "oil can" or look wavy to you. Here's a link with a lot more info than I can give: www.metalroofer.blogspot.com
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Old 02-03-2012, 12:29 PM   #18
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Ice dams should be pro-actively fixed via air sealing and insulation.
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Old 02-03-2012, 06:17 PM   #19
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Thanks for the info everyone. Guy a few houses down with a little cape style house had a nice looking metal roof put on a couple years ago. Need to get over there and ask him who did it and if they are happy with it. I remember a small crew of guys were there for almost a week but that also included tearing off the old roof.

I've been slowly renovating upstairs, including air sealing and insulating. I pre installed baffles under the roof deck to allow airflow for when I get soffit venting installed at some point. Only vents right now are a few square units along the ridge. It's obvious here where I've done work:



Snow hasn't really been deep enough or stuck around long enough this winter to see if the ice dams will be reduced a lot. Although without soffit vents still, it wouldn't really be a "real" test anyways. But with the 2x4 rafters and not enough room up there to fir the rafters down far enough for thick insulation, there will probably always be some melting up there.

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Old 02-04-2012, 09:53 AM   #20
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Metal roof questions


That size roof should take a small crew (3 guys) anywhere from 3-5 days to do a one layer tear off and put back with metal.

If and when you do this project, you may want to look into converting that roof into a hot roof altogether. Capes with 2x4 construction will never be insulated well enough to prevent melting.
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Old 02-04-2012, 12:32 PM   #21
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Quote:
Originally Posted by Windows on Wash View Post
That size roof should take a small crew (3 guys) anywhere from 3-5 days to do a one layer tear off and put back with metal.

If and when you do this project, you may want to look into converting that roof into a hot roof altogether. Capes with 2x4 construction will never be insulated well enough to prevent melting.
A little late for the hot roof option I think. Already have just under half of the upstairs insulated, baffled, and drywalled. It ain't coming down again, lol. The front part of the floor where the bedroom is has a little more leeway as far as building the rafters down for more insulation. But not to the required R49 or whatever it is for this climate. It would be like sleeping in a hallway, lol. I do have about an R53 on the flat part of the ceiling, though.

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