When it rains rain water collected by it trickles down the inside wall of the pipe and leaks out at the joint as shown in the pic.
How to keep rain out of dryer roof vents.
Loose vent covers can allow rain to blow into the attic.
Steam and condensation naturally occur in small amounts in dryer vents.
Please see attached pic of a 4 way in the pipe vent stack vent the one that is used to prevent vacuum forming in drainage lines.
You simply need to pull the lint out.
It this is the case you need to create a breathable shield to slow the driving rain drops while still allowing air flow.
This can become difficult if the system is especially complicated or if the vent is vertical and requires roof access.
Minimizing water intrusion through roof vents in high wind regions 4 of 8 r 7 oofing 12 10 wind driven rain penetration.
This video shows one possible way to do that.
Currently there is no ade quate standard test method to evaluate the potential for wind driven rain to enter attics through soffit vent openings such as those shown in figure 6.
This is how to stop a roof leak in the rain.
Your home may require professional dryer vent cleaning from dryer vent specialists especially if the vent is on the roof.
If your roof vent leaks during heavy rain the rain may be blowing up under the hood and into the vent.
Use a ladder to access the vent and tighten the screws of the vent cover.
As you won t be able to fix the roof vent leak from outside emergency fix must be done from under the roof or the attic.
The immediate thing to do is to contain dripping water from the leak.
Before climbing up to the roof get behind the dryer to vacuum out the vent.
You will need to use a vacuum to clean out the length of the vent and unless you have access to an industrial vacuum it is unlikely that you ll be able to do this from the roof.