What you are experiencing is downdraft from the roof.
Sewer vent pipe on roof smells.
These gases are a natural byproduct of the bacteria that break down the waste in either your septic system or sewer line.
Often wind currents cause these odor problems.
Now let s look at the top signs to look for which may mean a vent is clogged.
As wind blows over the house the air currents that are supposed to carry the gases up and away can carry sewer gas down fron the vent stack on the roof into the living areas.
Because of this naturally occurring cycle the septic and sewer gases have a foul odor.
Vent stacks are supposed to remove foul air to the outside it equalizes pressure so that the fixtures operate properly.
As wind blows over the house the air currents that are supposed to carry the gases up and away can carry sewer gas down fron the vent stack on the roof into the living areas.
There are a handful of possible causes for a sewer gas smell in your home most of which are the result of plumbing failures.
Sewer and septic tank odors are a big problem for some homes.
The second most common source is a bad wax seal under a toilet.
Similar to a drain trap vents allow sewer gas to leave your home through your roof rather than going elsewhere.
The plumbing roof vent pipe and yard based sewer vent pipe are also a place where septic gases and sewer gases exit the system safely.
Plumbing vent pipes are located on roofs away from windows or air conditioning units so that the fumes can easily dissipate.
One easy fix that may work is to pour a quart of water down each of your drains.
Often wind currents cause these odor problems.
Located on the roof these vent pipes allow gases to escape from your sewer system.
If that doesn t get rid of the odor it s time to call a professional.
When you think of clogged plumbing blockages in drain pipes are probably the first issue that comes to mind.
Sewer gas smell is caused by invisible gas that enters your home from your plumbing pipes.
Strong sewage smells are a telltale sign that your toilet vent pipe may be clogged.
If there is a clog in the plumbing vent those sewer gasses can t escape properly.
Sewer and septic tank odors are a big problem for some homes.
Those carbon filters you speak of work very well sometimes frost over can cause the carbon to not work effectively.
Normally the gases are carried up and away from the system s stink pipe.
Plumbing air vents also prevent sewer gases from entering the home and allow wastewater gas and odor to escape.