Best R Value For The Deep South Attic

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.

Best r value for the deep south attic.

Basics of faced fiberglass insulation from r 13 to r 19. The r refers to absolute thermal resistance. Owens corning 541799 r 10 attic stairway insulator for openingsup to 24 5 by 54 price on amazon. Attic stairway insulator 25 x 54 x 11 r value of 14 5 fireproof attic stairs insulation cover.

Warmer climates only require an r 38 or higher or about 12 or more. 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. R value is a measurement of thermal resistance and measures the ability of heat to transfer from one side of an object to another.

R value is a standard unit of measurement for determining among many things how effective your insulation will be. 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. Where you live different climates require different insulation r values.

There are many ways to retrofit a home with fiberglass and. Existing 3 4 inches of insulation. Attic door insulation stair cover for openings up to 25 by 54 inch. Higher r value numbers mean that the insulating material resists the cold or heat from the outside better.