If your roof vent leaks during heavy rain the rain may be blowing up under the hood and into the vent.
Getting a liitle water through my roof vents.
Place a deflector over the opening of the vent to keep rain from blowing through the opening.
As well check shingle integrity.
There are professionals that will inspect your roof and look for a ridge vent leak for only a minimal cost.
Most air vent styles prevent direct intrusion of water.
Go into your attic.
With the pipe in a vertical position trace around the pipe using a pencil.
The penetration will be oval to have a round pipe exit vertically through a pitched roof you need an oval hole in the roof.
They will look over all your metal flashing the number one cause for roof leaks.
Each needs to be evaluated for risk to your home.
And on occasion a hard driving rain with whipping wind will cause roof vents to leak water.
Minimizing water intrusion through roof vents in high wind regions.
But some roof air vents sit fairly flat to the roof with a mushroom style hood and unprotected sides.
Deflectors are available in many sizes configurations and colors to match your existing vent cover.
To describe practices for minimizing water intrusion through roof vent systems that can lead to interior damage and mold growth in high wind regions i e greater than 90 miles per hour mph basic gust design wind speed 1.