Putting R30 In An Attic

Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.

Putting r30 in an attic.

In temperate coastal areas such as zone 3 attic insulation of at least r30 up to a maximum of r60 is recommended. The attic is the easiest place to add insulation to improve your comfort and the energy efficiency of your home. Typically houses in warm weather states should have an r 38 insulation in the attic whereas houses in cold climates should have r 49. These insulation levels will keep heated air from migrating out in winter.

Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live. Better than spray foam thermal break and relatively consistent r 30. See below for a shopping list and tools. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.

For loose fill cellulose this translates to a total depth ranging from 8 inches. I ve always said adding insulation to your attic is some of the best money you can spend to make your house more energy efficient but whether to use faced or unfaced insulation is a great question. Now here s a situation where a homeowner what looks like many years ago added insulation they added a three inch layer but. Here s how to use 3 layers of 2 inch polyiso foam board to meet code and keep your ne.

If you have a fan pull down stairs or other fixtures in the attic they also need to be. Wall insulation whenever exterior siding is removed on an. Drill holes in the sheathing and blow insulation into the empty wall. Now that you ve air sealed your attic and basement check your attic insulation levels and add more if necessary.

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. You need to insulate the attic even if you can t easily access it because it s a huge risk for air leaks and potential heat loss. You need to make sure that ductwork is properly sealed to prevent moisture build up in the attic.