The thing you want is a dead possum in an inaccessible place in your roof or walls.
Possum urine smell in roof.
But when it stains through from the attic onto your ceiling the stain will look darker because of the nature of drywall.
Color opossum urine is yellow in color like pretty much all mammal urine.
If you can remove a couple of roof tiles do so.
Removing possum urine odor.
Perhaps if you can also use a small fan to circulate the air.
Urine from any animal is acidic and can have an etching effect on some masonry surfaces like bluestone.
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.
Odor it does have an odor and it smells like most other wildlife pee maybe a little more pungent.
The subsequent liquid release will leave a mark as well as a pungent odour.
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.
They also leave urine stains on paving at ground level.
Clorox kills germs and smells.
If there is a window open it.
The may also eat through wiring.
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.
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.
Urinefree will work on rat possum urine but part of the problem with rat or possum urine in the roof is that the urine odour has nowhere to escape.
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.
If possible sweep the water out the door let air dry and sit fans down there to help dry.
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.
If the urine is in the roof a confined space we recommend before using urinefree to ventilate the roof.
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.
A possum is a large animal and it has no qualms relieving itself in your roof.