What insulation enhancements does ACP offer compared to EPS panels?

Aluminum composite panel (ACP) cladding provides superior insulation integration compared to expanded polystyrene (EPS) panel systems. While EPS panels consist solely of rigid foam insulation bonded to a decorative finish, ACP systems use a ventilated rainscreen approach that accommodates a full range of insulation materials—mineral wool, PIR, or high-density foam—optimizing thermal performance. ACP panels affix to rails mounted over continuous insulation, preventing thermal bridging through studs or anchors. The ventilated cavity beneath the ACP promotes convective airflow that removes moisture and reduces summer heat load. EPS panels, often installed adhesive-directly or with mechanical anchors, lack this airflow path and are susceptible to moisture absorption over time. Additionally, ACP can incorporate thermal breaks in sub-frame brackets, further minimizing conductive heat transfer. For aluminum ceilings over unconditioned spaces, ACP panels integrate acoustic insulation layers, delivering both sound and thermal control in one assembly. Moreover, ACP facades allow thicker insulation layers without increasing panel depth, maintaining slim sightlines. Overall, ACP’s adaptability and rainscreen methodology yield more effective, durable insulation performance than EPS panel solutions.