Attic Insulation R30 Vs R60

Wall insulation whenever exterior siding is removed on an.

Attic insulation r30 vs r60.

Assign 20 to each and you get 100 for each area. Whoa whoa david oswald you ve just entered the domain of the law of diminishing returns. I climbed up to attic and noticed that there are batts of insulation but not much blown in will post a picture. 30 grains of black powder will drive that lead ball just fine.

Fwiw the recommendation for our region is r30 to r60 in an uninsulated attic so no help there. Existing 3 4 inches of insulation. 90 grains might be approaching the ma. For example those in the southernmost part of the us attics should have from r30 to r60 average is r38.

Here s what i mean. Home built in 2000. Cut that is half with the extra insulation and you save 50 per year. On the original question more is better but the crossover from a cost benefit may not be there for r60.

The more you use the better insulated your home will be. Sixty grains even faster. Add insulation to attic. Square feet of house or area to be insulated current and desired r value for insulation and type and cost of your energy.

Another way to estimate the savings is a bit crude but there are 5 loss areas windows and doors walls ceilings floors and foundation and air leakage. Those up north will want anything from r49 to r60. Use this insulation savings calculator to measure the financial impact of increasing your insulation performance. Attic insulation is about r30 rolled batts with some blown in fiberglass above it.

Take a look at the bigger picture and see whether you might be better served by reducing the size of the home finding ways to save on water heating appliances and plug loads or. The bottom line is that although you can certainly put r 40 insulation under your slab or r 80 insulation in your walls it may not be the smartest thing to do. Attic existing 3 4 inches of insulation uninsulated floor uninsulated wood frame wall insulated wood frame wall 1 r30 to r49 r25 to r30 r13 2 r30 to r60 r25 to r38 r13 to r19 n a 3 r30 to r60 r25 to r38 r19 to r25 and add r5 insulative wall sheathing beneath the new siding 4 r38 to r60 r38 r25 to r30 add r5 insulated. While there are also insulation recommendations for walls and floors this article will deal mainly with the oft overlooked attics.