How Many Inches Of Insulation In Attic In Florida

Once you ve determined the r value of insulation you need to decide which type of insulation you will use.

How many inches of insulation in attic in florida.

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. The r value your home s attic needs depends on where you live. We recommend that every home owner in florida check their attic to see if you need more insulation. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.

Not having the right thickness will cost you more money in higher electric bills. Click the button to calculate the depth in inches and pounds of total insulation required for this job. 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. Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live.

Depending on type you will need somewhere between 10 and 18 inches of insulation to meet the recommended insulation values. Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. Energystar recommends an r value of r 38 for most homes. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.

That translates to about 12 inches of insulation. You can see on home depot s website how many inches translates to a certain r value. Energy star s map of recommended home insulation shows that the majority of florida is within zone 2. In temperate coastal areas such as zone 3 attic insulation of at least r30 up to a maximum of r60 is recommended.

Input length width and desired r value of the area to be insulated. If you do not have at least 10 to 12 of insulation in your attic you need more insulation. All other florida counties are considered to be in climate zone 2 and require a minimum r 38. For loose fill cellulose this translates to a total depth ranging from 8 inches.