Best R Value For The Deep South Attic

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Best r value for the deep south attic.

The r value indicates how well insulation resists heat transfer. Your home s age if your home is more than 10 year old you likely need more insulation. Most homes are insulated in the attic and any floors located above unfinished basements or crawl spaces. 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.

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. You will need a higher r value of insulation if you live in the northeast than if you live in southern california. The r refers to absolute thermal resistance.

Where you live different climates require different insulation r values. Attic door insulation stair cover for openings up to 25 by 54 inch. R value is a standard unit of measurement for determining among many things how effective your insulation will be. The most effective places to add insulation to older homes are exterior walls attics basements and crawl spaces.

Higher r value numbers mean that the insulating material resists the cold or heat from the outside better.