Calculateur d’isolation
Calculateur gratuit d’isolation — estimez les paquets selon surface, couverture et perte.
Résultats
13Paquets à acheter
- 12.5Paquets exacts
Fonctionnement
Packs = (area × (1 + waste%)) ÷ coverage per pack. We ceil to whole packs.
Exemple
Example: 1,000 sq ft, 88 sq ft/pack, 10% waste → 13 packs.
Read the bag
Batt and roll bags list square-foot coverage for a given thickness and width. Enter that coverage number.
Cavity vs continuous
This sizes area coverage only. R-value and continuous exterior insulation are specification choices, not piece counts.
Waste
Odd framing and cutouts increase waste. 10% is a common starting point.
FAQ
How many packs of insulation do I need?
Divide wall or attic area by the coverage on the package, then add waste. Use this calculator with those two numbers.
Batts or blown-in?
This tool is for packaged batts/rolls. Blown-in uses bags by volume—follow the manufacturer’s bag chart.
Does this include vapor barrier?
No. Facing, vapor retarders, and air sealing are separate materials.
Estimations seulement. Vérifiez rendements et règles locales.