PIMA is the national trade association that advances the use of polyisocyanurate(polyiso) insulation and is one of the foremost advocates for energy efficient practices and policies in the country. Polyiso is one of the nation's most widely used and cost-effective insulation products and has been recognized by the EPA as an important product in sustainable construction. Our Mission: PIMA is the unified voice of the rigid polyiso industry and a proactive advocate for safe, cost-effective, sustainable and energy efficient construction. PIMA membership promotes the polyiso industry through leadership, advocacy and education.