- 1. Remove small droppings (rat & squirrel) with a vacuum where possible.
- 2. Hand-pick all large droppings (raccoon & opossum).
- 3. Remove all the bits of nesting material and food debris.
- 4. Remove and replace all insulation that has been heavily soiled.
- 5. Once the insulation and waste is removed, fog and sanitize the attic with an antimicrobial spray like BioShield or Bac-Azap, to kill off any fungi and bacteria
- 6. Deodorize the attic with a latex based kill stain to lock in all of the odors and prevent them from entering the home.
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- updated for year 2020.
When your house and attic have been invaded by wildlife, capturing and removing the animals are simply the first parts of what you need to do to repossess your home from them. Nuisance animals don’t only leave a lot of messy, bio-hazardous waste in your attic, they also inflict a lot of damage on your insulation and in some case, structures.
Animals do virtually everything they have to do in the same space, which means that you’ll find all kinds of waste in your attic after a successful wildlife removal exercise, including food debris, urine, droppings, body hairs, nesting materials, and even body parasites like fleas and mites. Let’s see, rats generally make a mess, and leave disease-causing germs in their wake; Squirrels tend to fill an attic with turds; Raccoon droppings are disease-laden; Opossums leave tremendous biodegradable waste; Bird and bat droppings can cause histoplasmosis – a lung infection disease. What’s more, your insulation is rendered useless when animals use it for nesting and bedding, it becomes rather ineffective.
Needless to say, the resultant smell is better imagined and you just might be tempted to remove yourself as well from the premises! You also do not want the animal waste in your attic to attract all new shelter-seeking rodents and other species in the neighborhood. Animals generally leave their scent in any space that they have occupied. These are pheromones that other animals can perceive and follow as they search for shelter and food. This is why your wild animal removal exercise must essentially be followed by a thorough attic cleaning and restoration.
Depending on the severity of the contamination in your attic, which usually is a function of how long nuisance animals have lived in it, there are varying degrees of attic decontamination. It is of utmost importance that you eliminate this biohazard risk as well as the unpleasant smell and odor signal. Here is a list of the basic activities that you need to carry out (or have a professional see to), to clean and sanitize your attic fully:
You or any individual carrying out this remediation must be properly covered in PPE safety equipment in order to avoid contamination through the skin and air passages.
The most common waste cleaned from attics is raccoon feces, and after that, probably rat poop, and then after that, squirrel waste is the most common. Opossum droppings in the
attic are very abundant when they live up there, but that's not as common as with raccoons or rats. Also, nesting material is the most common with squirrels in the attic.