Civil & Finish Calculators Keifa Engineering & Architectural Tools
Finishes

Waterproofing Calculator

Calculate the waterproofing area including laps, the material quantity required and the rolls or buckets needed for your package size.

Waterproofing works

Waterproofing Calculator

Calculate the waterproofing area including laps, the material quantity required, and the rolls or buckets needed for your product package size.

Instant Results & Bill of Quantities
Total area including laps (m²) 0.00 م² Overlap / laps (%)
Material quantity required 0.00 Coverage rate (m² per unit)
Rolls / buckets required 0 لفة/عبوة Package or roll size

Instant Results & Bill of Quantities

Item Weight / Quantity Formula & Specifications

Result type: Material Consumption Estimate

Formulas & Assumptions

Formulas used

  • A_total = A × (1 + Laps%)Area including laps
  • Qty = A_total × Coats × (1 + Waste) / CoverageMaterial quantity required
  • Packages = ⌈ Qty / Package size ⌉Rolls or buckets required

Assumptions & reference values

  • Editable assumptionCoverage (m² per unit) depends on the product — take it from the datasheet.
  • Default valueDefault laps 10% for joints and corners.

Notices: This result is intended for quantity estimation. Verify quantities against approved drawings and project specifications before procurement or construction.

This calculator provides quantity and preliminary cost estimation. Structural design, material specifications and final quantities must be verified against project drawings, specifications and applicable engineering standards.