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I want to extend a roof several feet off the back of the house. Due to limitations caused by Code, the location of my chimney, structural considerations, etc. my only option is to flatten out the slope on the bottom third of my roof from 3.3/12 as it is over all of my house to 1.5/12. This will give me the room I need. I have all but committed to standing seam metal roofing as several of the products I have reviewed are rated for the slope in question, but I am concerned about transitioning from asphalt shingle (the upper two thirds) to standing seam (the lower third) and cutting the pithc in half at a line perpindicular to the rake of my roof.
Is this possible? If so, what considerations are there?
Thanks,
GDG
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This is not too tough. You need a closure strip such as a Z Channel on the uphill end of the standing seam panels. The transition flashing needs to go under the asphalt and come out on top of the standing seam, locking over the Z Channel.
It is critical that the transition be mounted high enough on the steeper roof that it maintains a positive pitch and is not kicked up too far by the height of the standing seam.
Get instructions from your standing seam manufacturer as well.
Good luck.
8/1/2005
Or copy this URL: https://www.metalroofing.com/spirit/comment/6379/find/Isaiah Industries, Inc.
8/1/2005
Or copy this URL: https://www.metalroofing.com/spirit/comment/6380/find/