Best R Value For The Deep South Attic

Houses in a cold climate should have a minimum of r 49 in the attic which is equivalent to approximately 16 of fiberglass insulation.

Best r value for the deep south attic.

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. Basics of faced fiberglass insulation from r 13 to r 19. Owens corning 541799 r 10 attic stairway insulator for openingsup to 24 5 by 54 price on amazon.

Existing 3 4 inches of insulation. In comparison an inch of blown fiberglass insulation has an r value of 3 1 3 4 and an inch of blown cellulose in an attic has an r value of 3 2 3 7. Attic door insulation stair cover for openings up to 25 by 54 inch. Where you live different climates require different insulation r values.

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. R value is a measurement of thermal resistance and measures the ability of heat to transfer from one side of an object to another. Recommended insulation levels for retrofitting existing wood framed buildings. Attic stairway insulator 25 x 54 x 11 r value of 14 5 fireproof attic stairs insulation cover.

Your home s age if your home is more than 10 year old you likely need more 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. Warmer climates only require an r 38 or higher or about 12 or more.