Ice & Water Shield Calculator
Calculate ice and water shield material for your roof. Estimate coverage, rolls needed, and total cost based on roof dimensions and product specifications.
Step 1: Roof Details
Understanding Ice & Water Shield
Ice and water shield is a self-adhering membrane installed on roofs to prevent ice dams and water infiltration. It’s typically applied in vulnerable areas like eaves, valleys, and around penetrations.
Step 2: Product & Cost Details
Installation Coverage
Standard ice and water shield rolls are typically 3 feet wide by 66 feet long (covering 198 sq ft). Always add 10-15% for waste, overlaps, and trimming.
Ice & Water Shield Results
Estimated Total Cost
Ice & Water Shield Product Comparison
| Product Type | Roll Dimensions | Coverage | Rolls Needed | Total Cost |
|---|
Coverage Breakdown
Calculation Formula
Rolls Needed = (Roof Area × Waste Factor) ÷ Roll Coverage
To calculate ice and water shield requirements: Multiply roof length by width to get area, add waste factor (typically 10-15%), then divide by the coverage per roll. Always round up to the nearest whole roll.
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