Attic Insulation R38 Vs R60

30 grains of black powder will drive that lead ball just fine.

Attic insulation r38 vs r60.

At insta insulation we ll assess your insulation situation to determine if insulation removal is needed. 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. Sixty grains even faster. 90 grains might be approaching the ma.

Here s what i mean. Wall insulation whenever exterior siding is removed on an. Knowing the r value and region will help you know how much attic insulation is enough. Whoa whoa david oswald you ve just entered the domain of the law of diminishing returns.

Use this insulation savings calculator to measure the financial impact of increasing your insulation performance. Drill holes in the sheathing and blow insulation into the empty wall cavity before installing the new. Normally there are two types of garage doors. While attic insulation is easy to set and forget there are times when insulation removal is needed whether it be for renovating purposes or to simply maintain a comfortable and safe home.

For example those in the southernmost part of the us attics should have from r30 to r60 average is r38. The more you use the better insulated your home will be. Enter your data into the fields where indicated. Square feet of house or area to be insulated current and desired r value for insulation and type and cost of your energy.

Those up north will want anything from r49 to r60.