R 38 In The Attic
R value is a measure of insulation s ability to resist heat traveling through it.
R 38 in the attic. Kraft faced insulation has a vapor retarder that helps to control moisture. The average cost of blown in insulation to achieve an r value of r 38 r 49 is 1 665 with most homeowners spending between 874 and 2 156 or 1 59 per square foot. The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type. Sixty grains even faster.
8 bags model k91 view the owens corning attic insulation. 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. Use rockwool thermal stone wool insulation to insulate the attic of a new build extension or to increase the r value and top up the current attic insulation especially in an older home. An insulation value of r 38 is at the high end and requires a.
Insulation thickness determines its thermal resistance or r value. Whoa whoa david oswald you ve just entered the domain of the law of diminishing returns. 8 bags r 38 ecotouch pink unfaced fiberglass insulation batt 16 in. 30 grains of black powder will drive that lead ball just fine.
The higher the r value the better the thermal performance of the insulation. Here s what i mean. Insulation level are specified by r value. Select your attic insulation application.
Owens corning r 38 ecotouch pink cathedral ceiling kraft faced fiberglass insulation batt 23 3 4 in. R 38 ecotouch pink kraft faced fiberglass insulation batt 16 in. 8 bags r 19 kraft faced fiberglass insulation roll 23 in. Recommended home insulation r values.
Insulation levels are specified by r value. The thicker the insulation the greater the r value. R value is a measure of insulation s ability to resist heat flow. The higher the r value the better the thermal performance of the insulation.
90 grains might be approaching the ma. When you need to add insulation to an attic crawl space or walls of a home the fastest and most cost efficient method is to use blown in insulation.