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Discussion Starter · #1 ·
I am having a problem with rain water coming in the roof caps for the bath exhaust fans. Heavy Texas thunderstorms blow in water, which runs down the pipe into the fan and ultimately into the ceiling damaging the drywall. Has anyone else had a problem like this? Do I need a different type of roof cap? I am attaching a photo of the one I'm using.
 

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Carbon Dioxide Producer
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I’ve installed a lot of those Nutone Scovill/Broan caps over the years.
One thing that comes to mind is roof pitch. If it’s a flat roof or has less than the manufacturers recommended minimum pitch, then water leakage like that can definitely happen.
 

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NICKTECH
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with winds blowing the rain in i think a rubberized roof flashing with a 3 or 4 inch pvc leader and a gooseneck or tee termination would do. maybe coming up with a tee drip legg and drain system like in the old original black cpvc flue pipe system. goodluck
 
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