Blown-In Insulation
How many bags of blown-in insulation an attic takes, and how deep to blow it — calculated from R per inch and settled density so you can check it against the bag in your hands.
Blown-in attic insulation
928 calculations
- Blown-in cellulose for a 200 ft² attic: R-0 up to R-30
- Blown-in fibreglass for a 200 ft² attic: R-19 up to R-38
- Blown-in cellulose for a 300 ft² attic: R-0 up to R-60
- Blown-in cellulose for a 300 ft² attic: R-30 up to R-38
- Blown-in fibreglass for a 400 ft² attic: R-11 up to R-49
- Blown-in cellulose for a 500 ft² attic: R-0 up to R-30
- Blown-in cellulose for a 500 ft² attic: R-19 up to R-49
- Blown-in fibreglass for a 600 ft² attic: R-0 up to R-60
- Blown-in cellulose for a 600 ft² attic: R-30 up to R-38
- Blown-in cellulose for a 700 ft² attic: R-11 up to R-60
- Blown-in fibreglass for a 800 ft² attic: R-0 up to R-30
- Blown-in cellulose for a 800 ft² attic: R-19 up to R-49
- Blown-in cellulose for a 900 ft² attic: R-11 up to R-30
- Blown-in fibreglass for a 900 ft² attic: R-30 up to R-38
- Blown-in cellulose for a 1000 ft² attic: R-11 up to R-60
- Blown-in cellulose for a 1100 ft² attic: R-0 up to R-38
- Blown-in fibreglass for a 1100 ft² attic: R-19 up to R-49
- Blown-in cellulose for a 1200 ft² attic: R-11 up to R-30
- Blown-in cellulose for a 1200 ft² attic: R-30 up to R-49
- Blown-in fibreglass for a 1300 ft² attic: R-11 up to R-60
- Blown-in cellulose for a 1400 ft² attic: R-0 up to R-38
- Blown-in cellulose for a 1400 ft² attic: R-19 up to R-60
- Blown-in fibreglass for a 1500 ft² attic: R-11 up to R-30
- Blown-in cellulose for a 1500 ft² attic: R-30 up to R-49
- Blown-in cellulose for a 1600 ft² attic: R-19 up to R-30
- Blown-in fibreglass for a 1700 ft² attic: R-0 up to R-38
- Blown-in cellulose for a 1700 ft² attic: R-19 up to R-60
- Blown-in cellulose for a 1800 ft² attic: R-11 up to R-38
- Blown-in fibreglass for a 1800 ft² attic: R-30 up to R-49
- Blown-in cellulose for a 1900 ft² attic: R-19 up to R-30
- Blown-in cellulose for a 2000 ft² attic: R-0 up to R-49
- Blown-in fibreglass for a 2000 ft² attic: R-19 up to R-60
- Blown-in cellulose for a 2100 ft² attic: R-11 up to R-38
- Blown-in cellulose for a 2100 ft² attic: R-30 up to R-60
- Blown-in fibreglass for a 2200 ft² attic: R-19 up to R-30
- Blown-in cellulose for a 2300 ft² attic: R-0 up to R-49
- Blown-in cellulose for a 2300 ft² attic: R-30 up to R-30
- Blown-in fibreglass for a 2400 ft² attic: R-11 up to R-38
- Blown-in cellulose for a 2400 ft² attic: R-30 up to R-60
- Blown-in cellulose for a 2500 ft² attic: R-19 up to R-38
- Blown-in fibreglass for a 2600 ft² attic: R-0 up to R-49
- Blown-in cellulose for a 2600 ft² attic: R-30 up to R-30
- Blown-in cellulose for a 2700 ft² attic: R-11 up to R-49
- Blown-in fibreglass for a 2700 ft² attic: R-30 up to R-60
- Blown-in cellulose for a 2800 ft² attic: R-19 up to R-38
- Blown-in cellulose for a 2900 ft² attic: R-0 up to R-60
- Blown-in fibreglass for a 2900 ft² attic: R-30 up to R-30
- Blown-in cellulose for a 3000 ft² attic: R-11 up to R-49