They will look over all your metal flashing the number one cause for roof leaks.
Getting a liitle water through my roof vents.
Most air vent styles prevent direct intrusion of water.
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.
These professionals will inspect various other common problems that may occur as well.
Deflectors are available in many sizes configurations and colors to match your existing vent cover.
There are professionals that will inspect your roof and look for a ridge vent leak for only a minimal cost.
And on occasion a hard driving rain with whipping wind will cause roof vents to leak water.
If your roof vent leaks during heavy rain the rain may be blowing up under the hood and into the vent.
As well check shingle integrity.
With the pipe in a vertical position trace around the pipe using a pencil.
Position the vent pipe up to the bottom of the roof.
Place a deflector over the opening of the vent to keep rain from blowing through the opening.
Minimizing water intrusion through roof vents in high wind regions.
Each needs to be evaluated for risk to your home.
Go into your attic.