The zone you live in will determine how much insulation you need in your attic.
How many inches of insulation in attic in florida.
These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation.
For loose fill cellulose this translates to a total depth ranging from 8 inches.
If you think you re among the 90 of us homes that are under insulated 1 performing a simple insulation inspection will help you determine your insulation needs.
Most of ga al ar sc ok etc to a high of 49 for zones 6 8 i e.
This calculator is to be used as an estimating tool only.
Most insulation you buy will have a sq ft number for easy reference.
Square footage of your attic.
This zone has a recommended r value of 30 to 60 for an uninsulated attic r25 to r38 for an attic with existing insulation and r13 to r19 for the floor.
Energy star s map of recommended home insulation shows that the majority of florida is within zone 2.
Type and material of your insulation.
Lee miami dade monroe and palm beach and require a minimum r 30 attic insulation.
For example if you have a type of insulation that has an r value of r 5 per inch of thickness you will need a depth of 6 inches of this insulation installed in your attic to reach r 30 if you live in zones 2 or 3.
The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type.
Click the button to calculate the depth in inches and pounds of total insulation required for this job.
The higher the r value the better the thermal performance of the insulation.
Having the correct amount of attic insulation can help you maintain a comfortable temperature throughout your home and help save money on your energy bills plus prevent major issues like ice dams in the winter.
All other florida counties are considered to be in climate zone 2 and require a minimum r 38.
This range varies from a low of 30 for homes with heat pumps or natural gas furnaces in zone 3 i e.
Contractor or insulation installer s fee.
Add the right kind of insulation.
The main factors that impact the cost are.
According to home advisor insulating your attic can cost between 1700 to 2100.
You can measure attic insulation thickness with a ruler and multiply the number of inches by the r value of that particular insulation to get an insulation rating.
Let s say you measured your attic and you realize your attic has about 9 inches r 30 of insulation and your attic is about 40 sq feet you d need at least 3 inches of extra insulation that covers 40 sq ft to get an r value of r 38.
In temperate coastal areas such as zone 3 attic insulation of at least r30 up to a maximum of r60 is recommended.
