Minimum R Value For Roof Insulation Florida

Maximum 20 of conditioned floor area.

Minimum r value for roof insulation florida.

Climate zone 1 consists of the following south florida counties. Insulation requirements in florida. 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. Zone 6 requires an r 30 minimum which is 5 2 thick.

Meet minimum r values given in table 402 1 1 frame walls r 13 block walls interior insulation r 7 8 exterior insulation r 6 ceilings. These r values are recommendations that use the r value calculator for concluding the insulation requirements. R value of various materials. You should of course see the manufacturer provided technical data sheet for the r value of specific products.

Minimum r value non residential above roof deck 19727 57th avenue east puyallup wa 98387 web. Non residential above roof deck this matrix provides the minimum insulation r values required by local and state municipalities. Broward collier hendry lee miami dade monroe and palm beach and require a minimum r 30 attic insulation. 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.

Must be inside conditioned space. The florida building code identifies two distinct climate zones. Here s a handy r value table that covers most types of roof coverings building insulation and a few other materials. Minimum insulation r value requirements non residential above roof deck.

Typically current best home building practices indicate an r 30 to r 38 for attic insulation. Also ensure that the home complies with the latest home building code requirements for insulation. Minimum insulation r value requirements by state. Residential requirements for insulation are divided by the location in the home.

For block walls interior insulation must meet or exceed r 7 8 and exterior insulation must be r 6. Foam insulation r values range from r 4 to r 6 5 per inch of thickness 2 54 cm which is up to 2 times greater than most other insulating materials of the same thickness. For a very good introductory overview article on r value see r values over at the website of. Framed wall insulation must meet or exceed r 13.

Raised r 13 sog r 0 windows. This exception will allow the minimum thickness to be 4 2 at the low point or 5 2 4 away from the drain on a per foot tapered system. State applicable energy ashrae. Foam in place insulation can be injected into walls to reduce air leakage and improve r value.