After the insulation is removed and the attic is sanitized it's time to re-insulate the attic. Depending on the type of home will depend on which insulation we put back into the attic. Older homes typically we'll use a cellulose because of the moisture in the attics. On new homes we can use a batted or blown in fiberglass. Most attics these days require a value of R-49 to R-60. Meaning an attic should have 16-20 inches of insulation. Even if your attic does not need cleaned or restored we are still capable of adding or replacing insulation.
Probably the most important step to complete restore your attic. After the attic is completely cleaned out and there is no more contaminated insulation it's time to decontaminate and spray for odor control. We use a a hand held fogger like the one pictured on the right to sanitize the attic. After the attic is decontaminated we spray killz like the odor control picture to the right to make sure all odors are locked out of the trusses and drywall beneath the insulation. Once this is done it is now to time to put the insulation back in.
The best way to remove contaminated insulation caused by bats or any wildlife for that manner is through a high powered vacuum. Our company owns an 18 horse power vacuum. The vacuum sits out side of the home with 100'-150' of hose attached. This hose is ran from the exterior of the home to the inside of the attic through an open window or gable end. If the insulation is not of the loose fill variety then you must bag up the insulation by hand. Typically heavy construction bags work well for doing this. Once all of the insulation is bagged up and removed from the attic, vacuum up any droppings left behind. Now the attic is completely removed of any damaged insulation or bat guano
Once you have had the bats excluded from your attic you can start the clean up process. Knowing how to clean up the attic is important before you start. First all flooring should be covered in plastic to prevent the spread of diseases. If you are removing insulation and bat guano through the attic hatch it is important to create an attic hatch barrier. This can be done using plastics around the attic entrance. it is best to remove insulation through a gable vent if possible. Some attics even have windows in them. If no gable vent is present than a window in the same room should be used. make sure the entire room is covered. The use of an air purifier or ozium machine is good to remove any dust or allergens in the air. Now that you have everything set up it's time to start the clean out process.
If you have bats in the attic of your home or building, then you may have large piles of guano (their droppings). Bat guano in the attic has a unique strong odor smell. Bat guano can cause a lung infection called histoplasmosis. This is caused by inhaling fungi spores of a fungus that is carried in bat guano. Urine and droppings will contaminate the insulation making it ineffective. In addition, the droppings and urine can deteriorate wood trusses and drywall. In a few Florida homes we have seen the droppings were so heavy the ceiling collapsed in.
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