Tracking a pesky leak

Travelcrafter wrote:
I've been resealing my old R V roof and used a product called Sikaflex on the side seams that done a real nice job or, at least looks like it did. I bought Dicor self leveling sealer for the flat seams like my sky lights witch I started today. I liked how the Dicor flowed out and leveled and I was confident I had done a good job. now I wonder if I'll have the same experience. I like the pressure test idea for leak location but could you actually cause a leak by blowing a seal. the only other thing I could think of is coloring water and pouring it in suspect areas but,then you have a problem of staining the ceiling.so maybe look the roof over and ID areas then pour clean water over one at a time till you find the one that hits.

The pressure test doesn't cause any seal damage. Pressures are limited to 1-2" of water column. Spraying water on the outside and looking for leaks inside is like trying to kill prairie dogs by filling an entrance hole. You'll be very lucky to the find the water intrusion point by putting water on the outside and will never know if that is the only one.