Insulation by attic size
How many bags of blown-in insulation common attics need at R-38. Each page shows the numbers; the insulation calculator works at any R-value and any coverage. Your required R-value is set by local code.
- 400 sq ft attic
- 500 sq ft attic
- 600 sq ft attic
- 700 sq ft attic
- 800 sq ft attic
- 900 sq ft attic
- 1000 sq ft attic
- 1100 sq ft attic
- 1200 sq ft attic
- 1300 sq ft attic
- 1400 sq ft attic
- 1500 sq ft attic
- 1600 sq ft attic
- 1700 sq ft attic
- 1800 sq ft attic
- 2000 sq ft attic
- 2200 sq ft attic
- 2400 sq ft attic
- 2600 sq ft attic
- 2800 sq ft attic
- 3000 sq ft attic