Identifying Vermiculite Insulation Vermiculite insulation is often overlooked when considering asbestos risks in homes. This material, which resembles shiny kitty litter, was commonly used in attics, around pipes, and in fireplaces before the 1970s. If your home was built during or before this period, there’s a chance you have vermiculite insulation. It’s important to know what to look for: vermiculite’s shiny, granular appearance is a key indicator. Homeowners should be aware of key signs indicating…