Colorado Attic Insulation R Value

R 5 shall be added to the required slab edge r values for heated slabs. R value table insulation values for selected materials. Add insulation to attic.

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Colorado attic insulation r value.

Where you live different climates require different insulation r values. Your home s age if your home is more than 10 year old you likely need more insulation. Special insulation exceptions related to ceilings with attic spaces ceilings without attic spaces masonry veneer and thermally isolated sunrooms are set forth in iecc. There are many ways to retrofit a home with fiberglass and.

You can achieve better thermal performance in your attic by adding an additional layer of insulation. The government recommends a minimum r value of 49 throughout all of colorado. Achieving greater r values in exterior walls. 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.

In the coldest climates insulating up to r 49 is recommended. For example if an attic has 10 inches of fiberglass batt 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.

The recommended insulation level for most attics is r 38 or about 12 15 inches depending on the insulation type. The higher the r value the better the thermal performance of the insulation. Special insulation exceptions related to ceilings with attic spaces ceilings without attic spaces masonry veneer and. For example r 49 would equal 17 inches of insulation.

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. 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. To obtain a wall or ceiling assembly r value you must add the r values of the individual components together. R 5 shall be added to the required slab edge r values for heated slabs.

Existing 3 4 inches of insulation. Rock wool blown attic 3 10 4 00. The depth of your insulation will equate to a relative r value. You will need a higher r value of insulation if you live in the northeast than if you live in southern california.

R value per inch x number of inches total r value 3 2 x 10 r 32. Recommended insulation levels for retrofitting existing wood framed buildings. Insulation requirements for slab on grade floors are further specified in iecc section r402 2 9. Copyright privacy accessibility sitemap dmca policy colorado springs utilities.

R value is the resistance to heat and cold.