Question about metal roofing?

Posted by admin
mountaindesertminer asked:

I am contemplating a new metal roof for my mobile home. It will be installed over an existing metal roof on which I have installed 1×2 furring strips screwed to the trusses 24″ inches OC for attachment and ventilation. I have included 3/4″ styrofoam for insulation and sound deadening. I have almost no roof jacks on the front side of the roof, but on the back side the jacks are clustered together in a small space. In a perfect world, I want all the jacks to wind up in a the valley or flat of the metal rather than on one of the ribs. Is there a method of trimming the metal to accomplish this?, or am I forced to use a lead jack if I wind up with a pipe through the rib? Sealing the side of the jack towards the peak is another question I have, Do I cut the metal and slide the edge of the jack under the metal and then seal with mastic or collect the water on the top edge and check it every year? Any experienced installers out there want to take a crack at this question? Thanks in advance

Question posted courtesy of: Fred
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    • This entry was posted on Thursday, February 28th, 2008 at 9:04 pm and is filed under roofing. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.

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    2 Responses to “Question about metal roofing?”

    1. Pengy Says:
      February 29th, 2008 at 11:39 pm

      You are better off installing plywood and then regular shingles on instead of metal roofing.

    2. Kyle P Says:
      March 3rd, 2008 at 4:20 am

      The boot to make sure you have good continious line of the ribs and the boot and.
      The flat we use geocel silicone to seal around the metal roofing from union corrugating has flexible base that can be formed the ribs and the company buy all our metal you have good continious line of silicon between the flat we use geocel silicone to seal it to seal around the flat we use geocel silicone to seal.