Radiant Barrier Calculator
Attic heat reduction from radiant barrier installation.
Inputs
sq ft
Results
Peak attic temp reduction
30 °F
Annual savings
$97
Cooling cost savings8.1%
Equivalent R-value boost9.1
Material cost$330
Professional install cost$1,455
DIY payback period3.4 years
Payback Pro14.97
How to Use This Calculator
- Enter Attic area, Climate zone, and Cold (Zone 5-7, northern US).
- Set Mixed (Zone 4, mid-Atlantic), Warm (Zone 3, Southeast), and Hot-dry (Zone 2, Southwest).
- Adjust Hot-humid (Zone 1-2, Gulf Coast), Existing attic insulation R-value as needed.
- Review Peak attic temp reduction (°F) and Annual savings ($).
- Use Cooling cost savings (%) and Equivalent R-value boost to inform your decision.
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