Attic Insulation R38 Vs R60

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.

Attic insulation r38 vs r60.

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

Square feet of house or area to be insulated current and desired r value for insulation and type and cost of your energy. 90 grains might be approaching the ma. Enter your data into the fields where indicated. The more you use the better insulated your home will be.

Whoa whoa david oswald you ve just entered the domain of the law of diminishing returns. Here s what i mean. Wall insulation whenever exterior siding is removed on an. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.

While there are also insulation recommendations for walls and floors this article will deal mainly with the oft overlooked. Those up north will want anything from r49 to r60. 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.