To find out if you have enough attic insulation measure the thickness of the insulation.
Florida attic insulation code.
Raised r 13 sog r 0 windows.
Ceiling insulation must be much higher at r 30 and a raised floor must be at least r 13.
Section r316 building thermal envelope code local codes.
The florida building code identifies two distinct climate zones.
Framed wall insulation must meet or exceed r 13.
Add insulation to attic.
Most insulation you buy will have a sq ft number for easy reference.
Section r316 local codes based on irc 2012.
Unvented attic code local codes based on irc 2009.
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.
Must be inside conditioned space tested to q n 0 03 by a class 1 bers rater or class a b or mechanical contractor hvac controls.
But the story doesn t end there.
Existing 3 4 inches of insulation.
For block walls interior insulation must meet or exceed r 7 8 and exterior insulation must be r 6.
Adding insulation to the attic is relatively easy and very cost effective.
Recommended insulation levels for retrofitting existing wood framed buildings.
Interior insulation r 7 8 exterior insulation r 6 ceilings.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
Residential requirements for insulation are divided by the location in the home.
Today we ll go over insulation for your attic and why it s essential to your florida home.
Broward collier hendry lee miami dade monroe and palm beach and require a minimum r 30 attic 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.
When designing and building an unvented attic using spray foam insulation you need to take into account code related to.
There are different insulation requirements and recommendations for different parts of your home.
Maximum 20 of conditioned floor area.
1203 3 unvented attic and unvented enclosed rafter assemblies.
Section r806 5 spray foam code local codes based on irc 2009.
Where combustion air is obtained from an attic area it shall be in accordance with chapter 7 of the florida building code mechanical.
Climate zone 1 consists of the following south florida counties.
Typically current best home building practices indicate an r 30 to r 38 for attic insulation.
Insulation in your walls floors and ceilings helps to keep your home cool in the summer and warm in the winter.
