Replies

1. 
   Piffin | Jan 20, 2009 04:38am | #1

   You mean safe to work on or safe to not leak?

    

    

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1. 
   bowfincreek | Jan 20, 2009 04:40am | #2

   safe from leaks

2. 
   MattSwanger | Jan 20, 2009 04:42am | #3

   Minimum of a 6-12 in michigan,  less than is asking for possible issues.  less than 6 is built everyday,  if given a clean slate and your choice of what pitch not sure why you would want less. 

   Woods favorite carpenter

    

   
   

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   Edited 1/19/2009 8:42 pm ET by MattSwanger

1. 
   AitchKay | Jan 20, 2009 04:59am | #5

   The usual constraints are the second-floor windowsill above, and headroom below. Not a whole lot you can do.One cheat is to butt your rafters into the header at the eave, using joist hangers for the connection. Then you've just gained 6-8" of drop. But you have to add knee-braces to support the overhang. Another cheat is to bring the main slope up higher than the second-floor windowsills, and cut in seamless pans, with minimal slope, in front of the window(s). But then you'd probably want heat tape to get rid of the ice/snow buildup in front of the windows, because they'll fill with drift.I'd go with option 1, one continuous slope, and, since it's not a heated space, ice-guard all the way up under the metal.AitchKay

   Edited 1/19/2009 9:00 pm ET by AitchKay

3. 
   seeyou | Jan 20, 2009 04:56am | #4

   You need to check the installation manual of the brand/model roof you're planning on using. All steel roofs are not the same. Different brands and models have different requirements. What you asked was akin to asking how fast a car can go.

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4. 
   Scott | Jan 20, 2009 05:22am | #6

   I think it's a manufacturer spec issue. My steel roof is rated for 3/12 or steeper. Your mileage may vary.

   We installed it at 4/12 on the one shed dormer portion of the house; we added a layer of I & W shield underneath just to be safe.

   Scott.