Shower and clean work clothes daily is recommended. The fiber glass will not burn. Numbers cited are for asphalt coating. Store and use in a manner that will prevent airborne particulate in the workplace. Wastes should be disposed of according to federal, state and local regulations.
Normal ventilation is usually adequate.
It is lightweight and will conform to irregular surfaces. There is no chemical hazard from this material. Too much fiberglass dust in the air will be irritating to the respiratory tract and eyes, but this is not likely to happen with this material. Glass fiber particles are irritating to the skin. Shower and clean work clothes daily is recommended.