Generator exhaust roof water leak

[cmillsap]

(07-19-2013 18:35)davidmbrady Wrote:  I'm still in Pennsylvania and we've been having torrential downpours, sheets of rain. These storms are a great test of the Brady Slide Seal. I'm quick with my flashlight to spot any interior dampness that may have breached the seal. The good news is, the slide seal is weather tight! The bad news is I found a steady stream of water coming down my genny roof exhaust. As many of you know the genny roof exhaust is encased in a 4" stainless steel pipe as it routes it's way thru the bus interior. The stainless is wrapped with a reflective insulation. Water is streaming down outside surface of the insulation wrapping. I have yet to climb on the roof to look around, too much lightening, but I thing it's designed so that rain can run down the void between the genny exhaust and the stainless steel outer pipe. This doesn't seem to be my problem. My leak seams to be on the outside face of the stainless steel protective piping. Have any of you experienced genny exhaust water leaks of this type? What should I check for? Are roof caps available where the exhaust protrudes thru the roof and seals onto the roof surface?

David,

I'm not familiar with whether the 4" stainless protrudes through the roof or not. If it does, it's probabaly the sealant around it at the roofline.

I will go look at how my genny exhaust exits through the roof tomorrow and we can compare notes. I wish I had checked WAGU a little earlier as I was on my bus's roof today replacing the fart fan.

Don't go on the roof if it is lightening!!


Chuck