Putting R30 In An Attic

The attic is the easiest place to add insulation to improve your comfort and the energy efficiency of your home.

Putting r30 in an attic.

Here s how to use 3 layers of 2 inch polyiso foam board to meet code and keep your ne. Now here s a situation where a homeowner what looks like many years ago added insulation they added a three inch layer but. In a cooling climate a good blanket of attic insulation helps keep the house cooler and reduces the load on air conditioning equipment. 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 make sure that ductwork is properly sealed to prevent moisture build up in the attic. 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. 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. See below for a shopping list and tools. 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. 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. Typically houses in warm weather states should have an r 38 insulation in the attic whereas houses in cold climates should have r 49.

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