R Factor Attic Florida

R values given in table 402 1 1 frame walls r 13 block walls interior insulation r 7 8 exterior insulation r 6 ceilings.

R factor attic florida.

Loose fill insulation usually made of fiberglass rock wool or cellulose comes in shreds granules or nodules. If you think you re among the 90 of us homes that are under insulated 1 performing a simple insulation inspection will help you determine your insulation needs. The r value your home s attic needs depends on where you live. Energystar recommends an r value of r 38 for most homes.

Must be inside conditioned space tested to q n 0 03 by a class 1 bers. Typically current best home building practices indicate an r 30 to r 38 for attic insulation. They are available in widths suited to standard spacings of wall studs and attic or floor joists. Maximum 20 of conditioned floor area.

The florida building code identifies two distinct climate zones. Recommended home insulation r values. Insulation levels are measured by r value. Broward collier hendry lee miami dade monroe and palm beach and require a minimum r 30 attic insulation.

That translates to about 12 inches of insulation. Raised r 13 sog r 0 windows. The higher the r value the better it insulates. 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.

Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. This zone has a recommended r value of 30 to 60 for an uninsulated attic r25 to r38 for an attic with existing insulation and r13 to r19 for the floor. R value is how well insulation can resist heat flow. R value is a measure of insulation s ability to resist heat traveling through it.

Energy star s map of recommended home insulation shows that the majority of florida is within zone 2. Insulation requirements in florida residential requirements for insulation are divided by the location in the home. 2x4 walls can hold r 13 or r 15 batts. Climate zone 1 consists of the following south florida counties.

Having the correct amount of attic insulation can help you maintain a comfortable temperature throughout your home and help save money on your energy bills plus prevent major issues like ice dams in the winter. Depending on where you live and the part of your home you re insulating walls crawlspace attic etc you ll need a different r value. Insulation level are specified by r value. Typical recommendations for exterior walls are r 13 to r 23 while r 30 r 38 and r 49 are common for ceilings and attic spaces.

Framed wall insulation must meet or exceed r 13.