Attic Best R Value For The Deep South

To add to the r value of existing insulation calculate the thickness based on the. The higher the r value the better the thermal performance of the insulation. And once you fill it with insulation aka a sponge you get mold rot and health issues.

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R value actually stands for resistive value.

Attic best r value for the deep south.

The r refers to absolute thermal resistance. Let me explain when the general public hears an r 13 wall insulation they believe that in fact they have an r 13 insulation value in their exterior walls. Insulation level are specified by r value. The brutal sun in the southern states will cook your attic and turn it into an oven literally.

The truth is this studs have an r value of 3 5. If you insulate your attic to an r 30 but do not insulate anywhere else you will have wasted 2 3 of the insulation. In the deep south it is usually more beneficial not. You will need a higher r value of insulation if you live in the northeast than if you live in southern california.

Higher r value numbers mean that the insulating material resists the cold or heat from the outside better. There are many ways to retrofit a home with fiberglass and. R value is a standard unit of measurement for determining among many things how effective your insulation will be. U factor is a measure of a component assembly in its conductive and radiate capacities.

R value is a measure of insulation s ability to resist heat traveling through it. It would be like insulating the attic to r 30 and then removing a couple of windows and leaving a couple of big holes in the walls. Where you live different climates require different insulation r values. A deep energy retrofit is a possibility but.

Recommended home insulation r values. Best insulation r value per dollar. The best advice for a home in boston can be disastrous for home in phoenix and vice versa. Basics of faced fiberglass insulation from r 13 to r 19.

Your home s age if your home is more than 10 year old you likely need more insulation. To insulate to r value 50 with an r value of 3 5 per inch you will need 50 divided by 3 5 or about 14 inches.