R36 Attic Insulation

The table below shows what levels of insulation are cost effective for different climates and locations in the home.

R36 attic insulation.

So we have between r36 and r56 in the attic. R values like r 38 are used by the construction industry to describe the thermal resistance of insulation materials like those used to insulate your attic when you are looking at an r 38 insulation you are actually reading a description of its resistance rather than size or thickness of the material. From schools to businesses to family homes our insulation works everywhere. The depth varies quite a bit because we have attic trusses and a floor in the attic.

The r value indicates how well insulation resists heat transfer. Insulation decreases the amount of heat entering from outside when it s hot and traps warmth inside when it s cold. 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. The higher the r value the better the thermal performance of the insulation.

The floor limits the cellulose to a depth of 12 inches in some places. Insulation level are specified by r value. R value is a measure of insulation s ability to resist heat traveling through it. Most homes are insulated in the attic and any floors located above unfinished basements or crawl spaces.