How much does R49 insulation cost?
The average cost of blown-in insulation to achieve an R-value of R-38–R-49 is $1,665 with most homeowners spending between $874 and $2,156 or $1.59 per square foot. Get free estimates from insulation contractors near you.
How thick is R49 roof insulation?
R49 Insulation Thickness Guide
| Insulation Material | R49 Thickness Required (Inch) |
|---|---|
| Blown-In Fiberglass | 16.25 inches |
| Blown-In Rockwool | 16 inches |
| Rock Wool Batt | 14.5 inches |
| Foam Board Insulation | 10 inches |
How thick is R49 batt?
Note that R30 batt insulation thickness is just 9-1/2 inches thick where as R-49 batt insulation thickness is 15-1/2 inches. This is a significant difference and thus why R-49 batt insulation is used typically in colder climates. And for those asking how thick is r38 insulation, it is 12 inches thick.
Is R49 insulation good?
Typical recommendations for exterior walls are R-13 to R-23, while R-30, R-38 and R-49 are common for ceilings and attic spaces. See the Department of Energy’s (DOE) ranges for recommended levels of insulation below.
What is R49 insulation used for?
The Owens Corning Paperfaced R49 is a flexible fiberglass insulation proposed to control moisture in concealed applications in between the studs and joists. With a paper facing on one side of the insulation, the R-49 Paperface Batt Insulation is smooth and flexible and can be easily cut for installation.
How thick is R49 fiberglass?
Fiberglass Chart
| R-Value | Thickness | Bags / 1000 Sq Ft |
|---|---|---|
| R49 | 16.25” | 22.6 |
| R44 | 14.75” | 20.1 |
| R38 | 12.75” | 16.8 |
| R30 | 10.25” | 13.0 |
How many inches of fiberglass insulation do I need for R49?
How thick does blown insulation need to be for R49?
16.25”
Fiberglass Chart
| R-Value | Thickness | Bags / 1000 Sq Ft |
|---|---|---|
| R49 | 16.25” | 22.6 |
| R44 | 14.75” | 20.1 |
| R38 | 12.75” | 16.8 |
| R30 | 10.25” | 13.0 |