I d blow insulation on the attic floor after air sealing of course.
Best insulation for florida attics.
Why should you care about insulation for attics.
The attic is in general the more important space to install thermal insulation in a south florida s homes.
Insulation ratings can be improved by adding more layers of insulation.
Most insulation you buy will have a sq ft number for easy reference.
Heat rises which means it ends up in the attic.
Framed wall insulation must meet or exceed r 13.
So it s time to pay close attention to what s happening up there.
The big disadvantage with spray foam is cost.
Achieving greater r values in attics.
Here s what you need to know about insulation requirements in florida.
Typically current best home building practices indicate an r 30 to r 38 for attic insulation.
For diy attic insulation you ve got two choices.
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.
The florida building code identifies two distinct climate zones.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
Make sure your home is properly insulated in all these locations.
Residential requirements for insulation are divided by the location in the home.
There are other materials and systems that you can use to insulate your attic.
Because the foam fills space so well it eliminates almost.
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 requirements in florida.
The cost to add attic insulation to a florida home ranges from 2 000 to 6 000.
For block walls interior insulation must meet or exceed r 7 8 and exterior insulation must be r 6.
Climate zone 1 consists of the following south florida counties.
It s generally 3 to 4 times what you ll pay for blown cellulose or fiberglass.
Both can be added to uninsulated attics or layered over existing material.
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.
Loose fill or batt the common term for blanket insulation.
