DIY
How Much Insulation Do You Need?
Calculate batts, rolls, or blown-in insulation by R-value, area, and framing type.
In this article
भारत में
Roof insulation सबसे ज़रूरी — Indian summers में छत सबसे गर्म होती है। Thermocol (EPS): ₹30-60/sq ft। XPS foam: ₹50-100। Rockwool: ₹40-80। Cool roof coating (white paint): ₹10-20/sq ft — cheapest and very effective! 2-4°C room temperature drop possible।
Cool Roof
White reflective coating: simplest insulation in India। ₹10-20/sq ft। Reduces AC bill 10-20%। PM Awas Yojana promotes insulated housing।
⚡ CalcWolf Insight
The biggest energy savings come from insulating the attic first — heat rises, and an under-insulated attic loses 25-30% of a home's heating energy. Adding insulation from R-11 to R-38 in the attic typically pays for itself in 2-3 years through lower heating bills.
Frequently asked questions
सबसे सस्ता?▾
Cool roof white coating: ₹10-20/sq ft। 2-4°C cooler। AC bill 10-20% कम।
AC room?▾
XPS foam board on ceiling: ₹50-100/sq ft। AC efficiency 20-30% increase।
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