A possum is a large animal and it has no qualms relieving itself in your roof.
Possum urine smell in roof.
You could use lemon scented clorox with a bit of dish detergent and just ventilate the room well so the fumes do not over come you.
Color opossum urine is yellow in color like pretty much all mammal urine.
If it s possible since both floor and walls hard washable maybe you could use a pump spray washer on it then scrub it with a brush and rinse again.
These repellents usually contain active ingredients like black pepper and capsaicin which emit a smell that opossums find unbearable.
If you can remove a couple of roof tiles do so.
If you ve ever had a possum living above your ceiling you know they can be quite noisy fighting screeching and running along the roof.
Removing possum urine odor.
They also leave urine stains on paving at ground level.
The usual signs of having possums in the roof are heavy bangs on the ceiling or roof at night as they run around hissing or coughing noises and stains or a strong ammonia smell caused by their urine.
The may also eat through wiring.
In case the site of the infestation in your attic roof or your garage or any indoor place and when liquid repellents are not an option because of their stench the next best option is a granular repellent.
If there is a window open it.
Possums are very common in australia and can do a lot of damage and really smell when they get up into your roof cavity or in your walls.
You cannot leave them in the roof as they piss on top of your ceiling to the point where you may find a possum bum hanging through a hole in the ceiling a neighbour of mine had that experience.
But when it stains through from the attic onto your ceiling the stain will look darker because of the nature of drywall.
If possible sweep the water out the door let air dry and sit fans down there to help dry.
If the urine is in the roof a confined space we recommend before using urinefree to ventilate the roof.
Clorox kills germs and smells.
The thing you want is a dead possum in an inaccessible place in your roof or walls.
They can also leave behind the foul stench of urine and brown stains of secretion from their glands which they use to mark their territory.
Other tell tale signs that a possum is living in your roof can be stains on a ceiling or drip marks down your walls caused by urine.
Odor it does have an odor and it smells like most other wildlife pee maybe a little more pungent.
Perhaps if you can also use a small fan to circulate the air.