Florida Attic Insulation R Value

Typically current best home building practices indicate an r 30 to r 38 for attic insulation.

Florida attic insulation r value.

Yes generally a higher r value means a more effective insulator but the highest r value possible may not be necessarily right for your project. Broward collier hendry lee miami dade monroe and palm beach and require a minimum r 30 attic insulation. What r value is best for my 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.

Climate zone 1 consists of the following south florida counties. You can see on home depot s website how many inches translates to a certain r value. That translates to about 12 inches of insulation. Achieving greater r values in exterior walls.

Foam in place insulation can be injected into walls to reduce air leakage and improve r value. The higher the r value the better it insulates. Energystar recommends an r value of r 38 for most homes. The r value your home s attic needs depends on where you live.

The florida building code identifies two distinct climate zones. You can achieve better thermal performance in your attic by adding an additional layer of insulation. Blown fiberglass installed in the attic has an r value of 2 2 per inch so 12 inches of it would give you an r value of 26 4 in your attic installation project.