Attic Insulation Below Minimum Level
Existing 3 4 inches of insulation.
Attic insulation below minimum level. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation. The average recommended level is 17 inches of r60. In zone 3 the average minimum requirement for attic insulation is 9 inches of r30 fill. Inspecting your attic insulation.
Recommended insulation levels for retrofitting existing wood framed buildings. Attic insulation the utilization of space of a building can be maximized with effective and properly implemented thermal insulation of the attic. Improve air quality with the passage of time dust dirt mold and other pollutants can accumulate in your home through air leaks as a result of poor insulation. Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.
The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type. In zone 4 the average minimum requirement for attic insulation is 11 inches of r38 fill. Add the right kind of insulation when adding additional insulation you do not have to use the same type of insulation that currently exists in your attic. Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live.
By boosting your attic insulation from r 11 to r 49 you can save up to 600 per year which means it will pay for itself in less than 2 years if you go diy. Add insulation to attic.