Slope of Roof


  #1  
Old 05-25-05, 04:36 PM
sayeamans
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Slope of Roof

What is the minimum slope I need to have in the roof over my porch. I am going to extend the porch out by about 10 feet and it will change the pitch of my roof. thanks.
 
  #2  
Old 05-25-05, 04:47 PM
E
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Depends what you want to roof it with. Most localities I'm familar with require either a 1/8in or 1/4in per ft slope. But at that pitch you need a "flat" roof system installed.
 
  #3  
Old 05-25-05, 04:59 PM
sayeamans
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composite shingles

The roof is standard composite shingles. new slope would be about 1:5
 
  #4  
Old 05-25-05, 06:12 PM
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To low for shingles, technically {code-wise} speaking. But if you do it with shingles, realize the shingles will be nearly worthless at keeping the water out, and "roof it" first with a self-adhering membrane. You'll need a wide drip edge flashing as well, you'll or be taking a chance with water seeping into the fascia, soffit/etc.
 
 

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