Urine from any animal is acidic and can have an etching effect on some masonry surfaces like bluestone.
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.
Odor it does have an odor and it smells like most other wildlife pee maybe a little more pungent.
Color opossum urine is yellow in color like pretty much all mammal urine.
The subsequent liquid release will leave a mark as well as a pungent odour.
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.
Clorox kills germs and smells.
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.
The may also eat through wiring.
If you can remove a couple of roof tiles do so.
If possible sweep the water out the door let air dry and sit fans down there to help dry.
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.
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.
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.
If there is a window open it.
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.
These repellents usually contain active ingredients like black pepper and capsaicin which emit a smell that opossums find unbearable.
Removing possum urine odor.
The thing you want is a dead possum in an inaccessible place in your roof or walls.
If the urine is in the roof a confined space we recommend before using urinefree to ventilate the roof.
They also leave urine stains on paving at ground level.
A possum is a large animal and it has no qualms relieving itself in your roof.
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.
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.