Insulation Product Comparison Guide
Below are various insulation options and the specific features that correspond to them.
Feature |
Fiber Glass Batts |
Cellulose |
Open Cell Spray Foam |
Closed Cell Spray Foam |
|---|---|---|---|---|
| Class | Fire Rated |  |
|
|
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| Controls Air Leakage | 1/2 |
|
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| Won't Sage or Settle | |
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| Doesn't Shrink | |
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| Will not support mold growth | |
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| Fills all cracks and crevices | |
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| Contains no formaldehyde | |
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| Deflects water leakage | |
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| Moisture vapor perm less than 1.0 (at R-19) (Vapor Retarder) | |
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| Ability for R-19 (or higher) in 2 x 4 construction | |
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| Glues building into solid mass | |
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| Always meets energy star requirements unaided | |
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| Stops convection currents | |
|
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| Stops air infiltration | 1/2 |
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| Stops all wind intrusion | |
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| Stops Moisture accumulation | |
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| Totals | 2 |
4 |
10 |
16 |
| R-Value per Inch | 3.8 |
3.8 |
3.8 |
6.2 |