How Does Usaa Calculate Ice And Water ShieldadminApril 28, 2026Calculators USAA Ice and Water Shield Calculator Roof Square Footage: Roof Slope (in inches): Ice Shield Type: Type 1 Type 2 Water Shield Type: Type 1 Type 2 Calculate Introduction & Importance … How to Use This Calculator … … Formula & Methodology … Real-World Examples Data & Statistics … … Expert Tips … … Interactive FAQ What is ice shield? … Learn more about USAA’s Ice and Water Shield NFPA I-Codes