Its been pouring here in Florida, and that means leaking vents. Now that its stopping its probably a good time to go check your roof and see if you have damaged vents. Another trick, during a big rain storm if you can gain access to your attic go up there and check the vent pipes from the inside. If they are wet your vents are probably leaking and rotting your roof planking. CQs will fix this easy and inexpensively for the life of the house