Area
Net treatment area
Allowed range: 0.001 to 1000000000
Waterproofing Calculator
Plan coating or membrane quantities from product specifications.
Open this toolWaterproofing quantities depend on whether the system is a coating or a membrane, and on the product's stated coverage.
Measure the full treatment area, including details that need coverage, then use the selected system's specifications. Keep the material estimate tied to that product.
Inputs and controls
Area unit
Net treatment area
Square feet, Square metres
System
Net treatment area
Liquid coating, Sheet membrane
Coats
Coating specification
Allowed range: 1 to 10
Consumption per coat
Coating specification · kg/m²
Allowed range: 0.01 to 50
Container mass
Coating specification · kg
Allowed range: 0.01 to 1000
Roll length
Membrane specification · m
Allowed range: 0.1 to 1000
Roll width
Membrane specification · m
Allowed range: 0.1 to 100
Overlap allowance on both axes
Membrane specification · m
Allowed range: 0 to 10
Ordering allowance
Order allowance · %
Allowed range: 0 to 100
Added once to the measured requirement.
Container or roll price
Order allowance · PKR / unit
Allowed range: 0 to 1000000000
Optional. Enter your own supplier quote.
How to use
- Choose area unit and system. Enter area.
- Enter coats, consumption per coat and container mass.
- Enter roll length, roll width and overlap allowance on both axes.
- Enter ordering allowance and container or roll price.
- Select Calculate estimate. Read the returned values alongside the assumptions below before copying, exporting or acting on the result.
Why use this tool
The system choices help separate coating consumption from membrane coverage when comparing a waterproofing purchase.
Before relying on the result
Select quantities from the product specification. Details, upstands and penetrations must be included in net treatment area.
Tool limitations
Select quantities from the product specification. Details, upstands and penetrations must be included in net treatment area.
Questions
Should upstands and penetrations be included?
Include their treatment area where the specification requires it. A floor footprint alone can miss vertical returns and detailed work.
What should I check before using Waterproofing Calculator?
Check Area, Area unit, System and Coats. Use the exact units shown beside the controls and replace any example values with your own inputs.
Source page last modified: 2026-10-01T14:08:57+00:00. This profile describes the tool; use its page to run it.
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