Attic Insulation R38 Vs R60

The more you use the better insulated your home will be.

Attic insulation r38 vs r60.

While there are also insulation recommendations for walls and floors this article will deal mainly with the oft overlooked. Enter your data into the fields where indicated. 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 sheathing before. 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.

90 grains might be approaching the ma. Drill holes in the sheathing and blow insulation into the empty wall cavity before installing the new. Sixty grains even faster. Use this insulation savings calculator to measure the financial impact of increasing your insulation performance.

For example those in the southernmost part of the us attics should have from r30 to r60 average is r38. Wall insulation whenever exterior siding is removed on an. 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. 30 grains of black powder will drive that lead ball just fine.

Those up north will want anything from r49 to r60. Whoa whoa david oswald you ve just entered the domain of the law of diminishing returns. Here s what i mean.