Mold. Improper attic insulation can result in excess moisture in your home. ... From a health standpoint, mold exposure can result in throat, eye, nose, and skin irritation. Further, it can cause respiratory issues, increased risk of asthma attacks, and pneumonia if you were to inhale mold spores.

Is it dangerous to breathe in insulation?

Direct contact with fiberglass or breathing airborne dust containing fiberglass may irritate the skin, eyes, nose, and throat. The symptoms of irritation are often nonspecific, temporary, and may include itching, coughing, or wheezing.

What happens if you breathe in loft insulation?

The nature of the insulation means its fibres can come loose and stick to your skin, and to your nose, mouth and eyes. It can also irritate your lungs if you inhale a lot of it, causing coughing and discomfort for a couple of days after.