Roof measurement and coverage
Measure roof areas and use product coverage without turning a quantity estimate into a design.
Read guideGuided project
Plan roof covering
Estimate roof-covering quantities and add supporting materials only when needed.
Begin with covering quantity, then use optional calculators that match your measured roof and product data.
Your project workflow
Work from top to bottom. Optional steps can be skipped; alternatives are grouped into one decision.
Check completed steps. You can skip optional steps.
- 1
Step 1
Calculate roof tiles
Estimate tile quantity from measured coverage and product data.
Use Roof tiles - 2
Optional
Calculate battens
Add batten quantities when layout and spacing are known.
Use Roof battens - 3
Optional
Calculate underlayment rolls
Add membrane rolls when coverage and roll data are available.
Use Roof underlayment rolls - 4
Optional
Calculate covering packages
Use package data for a separate purchase quantity check.
Use Roof covering packages - 5
Optional
Estimate the purchase cost
Use the quantity from your chosen calculator and the supplier's package price.
Use Material purchase cost
Guidance for this job
Roof tile and batten data
Use the exact tile-system gauge, coverage and pack data from current product documents.
Read guide