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.
Possum urine smell in roof.
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.
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.
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.
If you can remove a couple of roof tiles do so.
If there is a window open it.
If possible sweep the water out the door let air dry and sit fans down there to help dry.
Odor it does have an odor and it smells like most other wildlife pee maybe a little more pungent.
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.
The thing you want is a dead possum in an inaccessible place in your roof or walls.
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.
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.
Removing possum urine odor.
Clorox kills germs and smells.
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.
Perhaps if you can also use a small fan to circulate the air.
A possum is a large animal and it has no qualms relieving itself in your roof.
Urine from any animal is acidic and can have an etching effect on some masonry surfaces like bluestone.
They also leave urine stains on paving at ground level.
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.
But when it stains through from the attic onto your ceiling the stain will look darker because of the nature of drywall.
These repellents usually contain active ingredients like black pepper and capsaicin which emit a smell that opossums find unbearable.
The may also eat through wiring.