What r value is best for my home.
Florida attic insulation r value.
The florida building code identifies two distinct climate zones.
Energy star s map of recommended home insulation shows that the majority of florida is within zone 2.
You can achieve better thermal performance in your attic by adding an additional layer of insulation.
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.
The higher the r value the better it insulates.
Typically current best home building practices indicate an r 30 to r 38 for attic insulation.
You can see on home depot s website how many inches translates to a certain r value.
Achieving greater r values in exterior walls.
The higher the r value the better the thermal performance of the insulation.
Foam in place insulation can be injected into walls to reduce air leakage and improve r value.
Broward collier hendry lee miami dade monroe and palm beach and require a minimum r 30 attic insulation.
The r value your home s attic needs depends on where you live.
That translates to about 12 inches 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.
Climate zone 1 consists of the following south florida counties.