Attic Best R Value For The Deep South

R value is a standard unit of measurement for determining among many things how effective your insulation will be.

Attic best r value for the deep south.

R value actually stands for resistive value. To add to the r value of existing insulation calculate the thickness based on the. R value is a measure of insulation s ability to resist heat traveling through it. 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.

The higher the r value the better the thermal performance of the insulation. There are many ways to retrofit a home with fiberglass and. Best insulation r value per dollar. In the deep south it is usually more beneficial not.

U factor is a measure of a component assembly in its conductive and radiate capacities. Insulation level are specified by r value. Higher r value numbers mean that the insulating material resists the cold or heat from the outside better. 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.

If you insulate your attic to an r 30 but do not insulate anywhere else you will have wasted 2 3 of the insulation. Recommended home insulation r values. The best advice for a home in boston can be disastrous for home in phoenix and vice versa. You will need a higher r value of insulation if you live in the northeast than if you live in southern california.

Your home s age if your home is more than 10 year old you likely need more insulation. 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. Basics of faced fiberglass insulation from r 13 to r 19. Where you live different climates require different insulation r values.

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.