Unfortunately the best place to clear a blockage in a vent pipe is from the roof.
Router out roof vent blocking.
Cut a square hole in the roof the same size as the hole in the base of the vent you re installing.
Turn the water on before you bring the hose onto the roof.
In hurricane prone zones with frequent high wind events vented soffit collapse can pressurize a building which can cause windows to blow out and the roof to be blown off.
If any of these issues are of concern there is another option.
Inspect for weather damage such as cracks loose vents or broken or missing tiles around vents.
How to clear a plugged roof plumbing stack.
Leaves debris or small animals can get into vent stacks.
Locate the top of the hole about 15 in.
Use a metal rod to dislodge any clogs such as leaves bird nests or other material.
Finally in wildfire zones floating embers can enter the vents and cause roof fires.
Check your plumbing vent stack when you hear grumbling in your pipes or bubbling in the toilet.
Don t cut into any rafters.
These vents need at least 10 inches of clearance to work but more clearance is better.
But sometimes ice leaves and limbs or other materials plug the plumbing vents.
You ll notice the enclosure has vents on the sides which allow hot air to flow out of the router and cool air to flow in.
Below the peak of the roof.
Working up on the roof can be a dangerous task to say the least.
Mark the hole with chalk and set your saw depth to cut through the shingles and the roof sheathing only.
Maintaining your roof ventilation system.
Those vents prevent overheating the delicate circuitry inside.
Your roof ventilation system should be inspected along with your roof at least every few years.
If you ve ever wondered why your house has those pipes sticking out through the roof they are there to help your plumbing work properly.
Move any rugs that are covering return vents in the floor.
You may also use a plumber s snake if the clog is farther down inside the vent and cannot be reached with the metal rod.
Remove the vent cover with the screwdriver and set it aside.
Look inside the vent opening and clear out any debris you find.
Push couches chairs and cabinets out of the way so those vents are free to move the air through your home.
Shorten curtains that hang down and cover your vents.
Look for anything that may be blocking the vent such as leaves and other debris.
Because clearing vent pipe blockages can be a real pain in the you know what you can take some preventive steps.