Attic Insulation Florida Code

For block walls interior insulation must meet or exceed r 7 8 and exterior insulation must be r 6.

Attic insulation florida code.

Framed wall insulation must meet or exceed r 13. Typically current best home building practices indicate an r 30 to r 38 for attic insulation. Residential requirements for insulation are divided by the location in the home. Add insulation to attic.

Recommended insulation levels for retrofitting existing wood framed buildings. Where the air infiltration rate in a dwelling unit is less than 3 air changes per hour when tested with a blower door at a pressure 0 2 inch w c. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. It provides the option of testing with a blower door to demonstrate that air leakage is less than 7 ach or that tightness be considered acceptable when items.

Most insulation you buy will have a sq ft number for easy reference. The florida building code identifies two distinct climate zones. Section r316 local codes based on irc 2012. Section 402 4 2 of the code requires building air tightness and insulation installation to be demonstrated as compliant with the code.

Section r806 4 local codes based on irc 2012. All florida insulation proper insulation levels for attic insulation in orlando maitland lake mary longwood gotha call 407 410 3626 for a free quote. 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. Here s what you need to know about insulation requirements in florida.

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. Broward collier hendry lee miami dade monroe and palm beach and require a minimum r 30 attic insulation. Unvented attic code local codes based on irc 2009. Section r316 building thermal envelope code local codes.

Existing 3 4 inches of insulation. 50 pa in accordance with section r402 4 1 2 of the florida building code energy conservation residential provisions the dwelling unit shall be ventilated by mechanical means in accordance with section 403 of the florida building code mechanical. Insulation requirements in florida. Section r806 5 spray foam code local codes based on irc 2009.