Water on Rigid Insulation Under Metal Roof


  #1  
Old 11-20-23, 02:45 PM
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Water on Rigid Insulation Under Metal Roof

I've got two problems:

1. The edge of my 2nd story roof does not protrude past the drip edge, which is causing water to track back up and under the metal panel. It's a shallow pitch, and the water has infiltrated what appears to be a rigid foam insulation. See pics below.

2. The foam sits under the metal panels without underlayment or sheathing. I assume the decking is below the rigid foam. Shouldn't there be something between the metal panels and the foam insulation? Cathedral ceiling with no attic.

What's the right course of action here? Longer metal panels to sit over the drip edge? Install sheathing or underlayment below the metal?





 
  #2  
Old 11-21-23, 04:08 AM
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I'm not familiar with roofing installed over foam but would think there should be tar paper between the foam and the roofing panels. I'd consider unscrewing the edge and slipping some flashing over the drip edge under the roofing and then screw it back down.
 
 

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