Climate zone 1 consists of the following south florida counties.
Best insulation for florida attics.
For block walls interior insulation must meet or exceed r 7 8 and exterior insulation must be r 6.
Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer.
You can mix the type and material of insulation too.
Insulation ratings can be improved by adding more layers of insulation.
During the day the heat goes inside the house through the roof deck into the attic space and down into the living space through the ceiling.
It s generally 3 to 4 times what you ll pay for blown cellulose or fiberglass.
There are other materials and systems that you can use to insulate your attic.
Here s what you need to know about insulation requirements in florida.
Framed wall insulation must meet or exceed r 13.
The cost to add attic insulation to a florida home ranges from 2 000 to 6 000.
Achieving greater r values in attics.
Broward collier hendry lee miami dade monroe and palm beach and require a minimum r 30 attic insulation.
Both can be added to uninsulated attics or layered over existing material.
Most insulation you buy will have a sq ft number for easy reference.
The ideal attic insulation r value is different than the ideal wall insulation r value.
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.
The big disadvantage with spray foam is cost.
Typically current best home building practices indicate an r 30 to r 38 for attic insulation.
The florida building code identifies two distinct climate zones.
So it s time to pay close attention to what s happening up there.
I d blow insulation on the attic floor after air sealing of course.
Because the foam fills space so well it eliminates almost.
Why should you care about insulation for attics.
This option is generally the most expensive but it s also the best insulator because the foam expands up to 100 times its volume to fill in cracks and crevices blow in insulation doesn t expand.
Residential requirements for insulation are divided by the location in the home.
Make sure your home is properly insulated in all these locations.
The attic is in general the more important space to install thermal insulation in a south florida s homes.
Insulation requirements in florida.
Heat rises which means it ends up in the attic.
For diy attic insulation you ve got two choices.
