Zonolite vermiculite attic insulation was widely installed in U.S. homes for decades because it was lightweight, fire-resistant, and an effective insulator. The problem is that some Zonolite vermiculite—especially material historically sourced from Libby, Montana—was contaminated with asbestos, a hazardous mineral linked to lung disease and cancer when its fibers become airborne. Because attic insulation can be disturbed during renovations, repairs, or even routine maintenance, many homeowners and renters faced unexpected expenses to test, contain, and safely remove or remediate the material. The class action settlement (reported as up to $55 million) was filed to reimburse eligible people who owned or rented buildings containing Zonolite insulation and paid out-of-pocket costs related to its removal or related abatement work. Its significance is practical: it creates a structured claims process (with proof required and deadlines that can vary) to help offset the often high cost of asbestos-related mitigation, which typically must be performed under strict safety protocols. More broadly, the case fits into a long history of asbestos litigation and remediation programs, where manufacturers and insurers have faced claims over legacy building products that later proved dangerous; it also underscores how building-material liabilities can persist for decades after installation, especially when renovation activity brings hidden hazards back into focus. This dispute sits within a wider regulatory and industry context governing asbestos handling and disclosure. Federal and state rules commonly require trained, properly equipped professionals for asbestos abatement, along with controlled work practices to prevent fiber release, and many jurisdictions impose notification, disposal, and recordkeeping requirements for asbestos waste. Similar claims and settlements have arisen around other asbestos-containing construction materials (such as certain tiles, mastics, and insulation products), reflecting a broader pattern: as housing stock ages and retrofits accelerate, the costs and compliance burdens of safely managing legacy hazardous materials increasingly shape homeowner decisions, contractor practices, and real-estate transactions