The Texas Supreme Court held that a home builder was covered for the voluntary removal and replacement of a defective insulation product it had installed in hundreds of homes. Lennar Corp. v. Market Am. Ins. Co., 2013 Tex. LEXIS 597 (Tex. Sup. Ct. Aug. 23, 2013).

Lennar built homes using an exterior insulation and finish system (EIFS). It was subsequently determined that EIFS trapped water inside homes with wood-frame walls, causing rot and structural damage, mildew and mold, and termite infestation. Lennar decided to contact all its homeowners and offer to remove the EIFS and replace it with conventional stucco.

Lennar notified its insurers that it would seek indemnification for the costs. The insurers refused to participate in Lennar's proactive efforts, preferring to wait and respond to homeowners' claims one by one.