Colorado Attic Insulation R Value

R value per inch x number of inches total r value 3 2 x 10 r 32. Insulation requirements for slab on grade floors are further specified in iecc section r402 2 9. Special insulation exceptions related to ceilings with attic spaces ceilings without attic spaces masonry veneer and thermally isolated sunrooms are set forth in iecc.

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For example r 49 would equal 17 inches of insulation.

Colorado attic insulation r value.

The recommended insulation level for most attics is r 38 or about 12 15 inches depending on the insulation type. You can achieve better thermal performance in your attic by adding an additional layer of insulation. R 5 shall be added to the required slab edge r values for heated slabs. Once you identify the type of insulation you have in a certain location and measure the depth of that insulation in inches you can figure out the total r value of that insulation.

Insulation requirements for slab on grade floors is further specified in iecc section 402 2 8. Use the r value table below to help you determine the r value of your wall or ceiling assemblies. In the coldest climates insulating up to r 49 is recommended. Special insulation exceptions related to ceilings with attic spaces ceilings without attic spaces masonry veneer and.

The higher the r value the better the thermal performance of the insulation. For example if an attic has 10 inches of fiberglass batt insulation. To obtain a wall or ceiling assembly r value you must add the r values of the individual components together. R value is the resistance to heat and cold.

The recommended r value throughout homes with electric heat is r 49 in your attic r 22 in your walls r 19 in your basement and r 25 in your floors. Existing 3 4 inches of insulation. Add insulation to attic. The government recommends a minimum r value of 49 throughout all of colorado.

Recommended insulation levels for retrofitting existing wood framed buildings. Your home s age if your home is more than 10 year old you likely need more insulation. Where you live different climates require different insulation r values. You will need a higher r value of insulation if you live in the northeast than if you live in southern california.

Because of the temperature fluctuations throughout the year colorado homes require a higher insulation r value than cities with more moderate climates like san diego or phoenix. Copyright privacy accessibility sitemap dmca policy colorado springs utilities. Rock wool blown attic 3 10 4 00. Achieving greater r values in exterior walls.

R 5 shall be added to the required slab edge r values for heated slabs. R value table insulation values for selected materials. Rock wool blown wall 3 10 4 00. There are many ways to retrofit a home with fiberglass and.

The depth of your insulation will equate to a relative r value.