Mn Attic Insulation R Value

Blown in cellulose insulation can carry an r value of 3 2 3 8 per inch of thickness.

Mn attic insulation r value. If you think you re among the 90 of us homes that are under insulated 1 performing a simple insulation inspection will help you determine your insulation needs. Many utility companies offer incentives on larger projects furnace replacement attic insulation new refrigerator by giving you a discount on energy bills or sending you a rebate check when the work is completed. You can achieve better thermal performance in your attic by adding an additional layer of insulation. Read more about insulating your attic on the energy star website.

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. Insulation level are specified by r value. The higher the r value the better the thermal performance of the insulation. Recommended home insulation r values.

To determine the present r value of your attic insulation have an energy assessment. In uninsulated attic spaces the target r value is r49 to r60 r38 to r49 for attics with some insulation. Increasing attic insulation to an r 50 can provide a good barrier to heat loss. Achieving greater r values in exterior walls.

To give you a quick example if you blow in 18 of insulation into your attic with an r value of 3 0 per inch you ve got an effective r value of 3 x 18 54. For floors the ideal r value is r25 to r30. In uninsulated attic spaces the target r value is r49 to r60 r38 to r49 for attics with some insulation. You can also measure the height of the insulation and multiply times the r value per inch of the ma terial that is in place 2 5 to 4 0 per inch on average.

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. The recommended r value for attic insulation in our area of the country minnesota is 49. Walls air sealing an attic replacing a furnace or adding storm windows may cost considerably more. The table below shows what levels of insulation are cost effective for different climates and.

Having the correct amount of attic insulation can help you maintain a comfortable temperature throughout your home and help save money on your energy bills plus prevent major issues like ice dams in the winter. Other utilities offer free. Our team can assess your space and help you determine the right solution for your attic. The higher the r value the better the thermal performance of the insulation.