R 38 Attic Insulation Depth

The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type.

R 38 attic insulation depth.

The higher the r value the better the thermal performance of the insulation. Owens corning r 38 ecotouch pink cathedral ceiling kraft faced fiberglass insulation batt 23 3 4 in. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. Ask your owens corning representative for the fact sheet on r values.

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. Recommended home insulation r values. The higher the r value the better the thermal performance of the insulation. For loose fill cellulose this translates to a total depth ranging from 8 inches.

R value is a measure of insulation s ability to resist heat traveling through it. This calculator is to be used as an estimating tool only. R value is a measure of insulation s ability to resist heat flow. 8 bags model k91 view the owens corning attic insulation.

Insulation levels are specified by r value. Add the right kind of insulation. C insulation for cathedral ceiling applications. 3200 ft2 1000 3 2 19 2 bags per 1000 ft2 for r 38 x 3 2 61 4 bags building inspectors typically check the insulation depth to verify compliance with local codes.

Obtain a specific r value. 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. Insulation level are specified by r value. Input depth of existing blown in insulation in inches.

For example to install r 38 in an attic with 3200 square feet of area use the following formula. In temperate coastal areas such as zone 3 attic insulation of at least r30 up to a maximum of r60 is recommended. 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. 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.

The higher the r value the greater the insulating power.