GreenGirt Optima CMH™ is a Class I continuous insulation system engineered for light- to medium-weight cladding—including ACM, metal, fiber cement, and high-pressure laminate panels. Proudly made in the USA by Advanced Architectural Products, GreenGirt Optima CMH delivers superior thermal and structural performance at a competitive price – positioning it as a cost-effective upgrade over Class II/III systems. GreenGirt Optima CMH is an excellent alternative to the flagship GreenGirt Max CMH™, designed for lighter weight cladding applications and offered at a reduced price. Optimized with thinner 0.17″ steel-reinforced flanges, GreenGirt Optima CMH reduces steel use and embodied carbon while preserving crosswise and lengthwise tensile strength – resulting in the highest strength-to-weight ratio in its class.