Roll Estimator Tool
Estimate how many rolls of underlay you'll need for your project
Project Details
Enter your building dimensions and select your underlay to estimate the number of rolls required.
Wall area is calculated as the perimeter of the building (2 × (length + width)) multiplied by the wall height.
Important Notes:
• An underlay is not warranted under exposed canopies, lean-to or soffits
• Contact the Technical Team now: Phone: 0800 806 595 | Email: technical@kingspaninsulation.co.nz | Our operating hours are 8:30am to 5:00pm