How To Get R38 In 2X8 Rafters

There are a few ways to get R38 in 2×8 rafters. One way is to use Roxul Safe ‘n’ Sound insulation. Another way is to use mineral wool insulation.

How To Get R38 In 2X8 Rafters

There are a few ways you can get r38 in 2×8 rafters. One way is to add insulation between the rafters. This can be done with fiberglass, cellulose, or mineral wool insulation. Another way is to use spray foam insulation. This type of insulation can be sprayed in between the rafters and will fill all the gaps and crevices. It is also a good way to insulate the roof sheathing.

-Rafters -Tape measure -Pencil -Circular saw -Chalk line -Paint or wood sealant -Ladder

  • Mark the placement of the rafters on the ceiling
  • Cut two 2x8s to the desired length
  • Use a level to make sure the marks are even attach the first rafter to the ceiling with nails or

-Check the lumber dimensions and grading to make sure you are getting the correct lumber -ensure that your lumber is straight and free of defects -cut each rafter to length -mark the rafter cut lines on the lumber -use a saw to cut along the marked lines -check the fit of the rafters in the opening and make any necessary adjustments -secure the rafters in place with nails or screws


Frequently Asked Questions

How Many Inches Of Insulation Do You Need For R38?

In order to achieve an R-value of 38, you will need 11 inches of insulation.

How Do You Get A R38 On The Ceiling?

A R38 on the ceiling is a thermal insulation product that is used to help reduce the amount of heat loss or gain in a building. It is usually installed in a ceiling or roof and is made up of small, flexible polystyrene beads.

Is R38 Insulation Good For Ceiling?

There is no definitive answer to this question as it depends on a number of factors, such as the climate and the structure of the building. That said, R38 insulation is generally considered to be a good level of insulation for ceiling applications.


In The End

There are a few ways to get r38 in 2×8 rafters. One way is to use Roxul Safe ‘n’ Sound insulation. Another way is to use fiberglass insulation, and the last way is to use spray foam insulation.

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