R 38 Attic Insulation Depth

R value is a measure of insulation s ability to resist heat flow.

R 38 attic insulation depth.

C insulation for cathedral ceiling applications. The higher the r value the better the thermal performance of the insulation. 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. 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.

Owens corning r 38 ecotouch pink cathedral ceiling kraft faced fiberglass insulation batt 23 3 4 in. For loose fill cellulose this translates to a total depth ranging from 8 inches. 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. Obtain a specific r value.

Insulation level are specified by r value. The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type. 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. Ask your owens corning representative for the fact sheet on r values.

R value is a measure of insulation s ability to resist heat traveling through it. The table below shows what levels of insulation are cost effective for different climates and. Recommended home insulation r values. The higher the r value the better the thermal performance of the insulation.

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. Click the button to calculate the approximate r value for this job. R 38c ecotouch insulation width length thickness r value1 cathedral ceiling construction 15 394mm 23 603mm 48 1 219mm 10 260mm 38 0 1.

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. This calculator is to be used as an estimating tool only. Input depth of existing blown in insulation in inches. Add the right kind of insulation.

Insulation levels are specified by r value.