Best R Value For The Deep South Attic

Warmer climates only require an r 38 or higher or about 12 or more.

Best r value for the deep south attic.

Owens corning 541799 r 10 attic stairway insulator for openingsup to 24 5 by 54 price on amazon. You will need a higher r value of insulation if you live in the northeast than if you live in southern california. Houses in a cold climate should have a minimum of r 49 in the attic which is equivalent to approximately 16 of fiberglass insulation. Basics of faced fiberglass insulation from r 13 to r 19.

Where you live different climates require different insulation r values. Recommended insulation levels for retrofitting existing wood framed buildings. Add insulation to attic. Attic door insulation stair cover for openings up to 25 by 54 inch.

Existing 3 4 inches of insulation. As a benchmark one inch of solid wood has an r value of 1. There are many ways to retrofit a home with fiberglass and. Higher r value numbers mean that the insulating material resists the cold or heat from the outside better.

R value is a standard unit of measurement for determining among many things how effective your insulation will be. R value is a measurement of thermal resistance and measures the ability of heat to transfer from one side of an object to another. But newer homes in central and southern arizona are insulated to ratings of r 30 to r 38 while newer homes in northern arizona generally have attic insulation at r 60 because of colder winters. The r refers to absolute thermal resistance.