R Factor Attic Florida

Climate zone 1 consists of the following south florida counties. Up to date values for rt the number to watch to measure covid spread. Broward collier hendry lee miami dade monroe and palm beach and require a minimum r 30 attic insulation.

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Here s what you need to know about insulation requirements in florida.

R factor attic florida.

Use this insulation savings calculator to measure the financial impact of increasing your insulation performance. For block walls interior insulation must meet or exceed r 7 8 and exterior insulation must be r 6. Insulation requirements in florida. Raised r 13 sog r 0 windows.

The florida building code identifies two distinct climate zones. R values given in table 402 1 1 frame walls r 13 block walls interior insulation r 7 8 exterior insulation r 6 ceilings. Existing 3 4 inches of insulation. Maximum 20 of conditioned floor area.

If it is less than r 22 7 inches of fiber glass or rock wool or 6 inches of cellulose you could probably benefit by adding more. To find out if you have enough attic insulation measure the thickness of the insulation. Homes should have between r 22 and r 49 insulation in the attic. Square feet of house or area to be insulated current and desired r value for insulation and type and cost of your energy.

Energy star s map of recommended home insulation shows that the majority of florida is within zone 2. Must be inside conditioned space tested to q n 0 03 by a class 1 bers. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. Typically current best home building practices indicate an r 30 to r 38 for attic insulation.

Recommended insulation levels for retrofitting existing wood framed buildings. Framed wall insulation must meet or exceed r 13. 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. Add insulation to attic.

Residential requirements for insulation are divided by the location in the home. 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. Enter your data into the fields where indicated. 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.

See the department of energy s doe ranges for recommended levels of insulation below.