Basement floors r 10 rsi 1 8 basement walls r 12 rsi 2 1 above grade walls r 20 rsi 3 5.
Recommended r value for basement floor.
Minimum recommended insulation levels.
For improved comfort moisture control and radon reduction apply a moisture barrier to the floor or seal the floor to prevent moisture accumulation between the insulation and the slab.
Values are shown in both imperial r and metric rsi units.
If veiwing this page on a phone it s best to turn the phone to view in landscape mode r values of flooring materials.
R values of different flooring materials.
Make sure that any water pipes are kept on the warm side of the insulation to prevent freezing in winter.
Recommended home insulation r values.
The higher the r value the better the thermal performance of the insulation.
For example if you have a type of insulation that has an r value of r 5 per inch of thickness you will need a depth of 6 inches of this insulation installed in your attic to reach r 30 if you live in zones 2 or 3.
For radiant floor heating you want the total r value to be as low as possible lower than 4 0.
This two inch thick piece of wood and the siding covering it are all that separates the interior of the basement from the outdoors.
Generally zones 1 and 2 cover the southern states which suggest no necessary values to r 10 for basement walls.
Basement insulation recommended r values by climate.
These numbers will vary from material to material.
The department of energy provides a service to determine the exact r value required based on zip code and type of heating fuel.
Zones 3 and 4 include the midwest and northern regions requiring r 10 to r 19 values.
R value is a measure of insulation s ability to resist heat traveling through it.
R values of different flooring materials.
Typical recommendations for exterior walls are r 13 to r 23 while r 30 r 38 and r 49 are common for ceilings and attic spaces.
To keep moisture and mold away this underlayment is treated with microban and includes airguard technology to promote airflow with embedded polyshims that prevent compression and allow moisture vapor to escape.
The airguard 5 in 1 floor underlayment is an ideal option if you re shopping for floor underlayment for laminate.
The r values of the carpet and padding add together for a total r value.
These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation.
Depending on where you live and the part of your home you re insulating walls crawlspace attic etc you ll need a different r value.