For diy attic insulation you ve got two choices.
Best insulation for florida attics.
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.
While there are many different types of insulation the best insulation for florida homes is spray foam insulation.
Typically current best home building practices indicate an r 30 to r 38 for attic insulation.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
Cost of spray foam 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.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
According to the florida department of agriculture and consumer services attic insulation is the most important location and best return on investment okay but why.
The big disadvantage with spray foam is cost.
We recommend that every home owner in florida check their attic to see if you need more insulation.
Then this is the perfect time to think about your insulation.
Most insulation you buy will have a sq ft number for easy reference.
But if you ve done research into insulation types you may be wondering.
The attic is in general the more important space to install thermal insulation in a south florida s homes.
I d blow insulation on the attic floor after air sealing of course.
Heat rises which means it ends up in the attic.
Is spray foam insulation worth it.
Why should you care about insulation for attics.
Loose fill or batt the common term for blanket insulation.
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.
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.
Climate zone 1 consists of the following south florida counties.
Broward collier hendry lee miami dade monroe and palm beach and require a minimum r 30 attic insulation.
So it s time to pay close attention to what s happening up there.
If you do not have at least 10 to 12 of insulation in your attic you need more insulation.
Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer.
