Insulation Calculator
Loft roll, PIR board, mineral wool, insulated plasterboard, loose fill, and pipe lagging
10% is typical; increase to 15-20% for awkward shapes or many joists/rafters to work around.
Areas / Surfaces
Job Costing (optional)
Results
Units to Buy
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rolls / boards
Total Net Area
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m²
Inc. Waste
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m²