How Deep To Make Blow In Insulation In My Attic

Blown in spray foam batts and blankets.

How deep to make blow in insulation in my attic.

For loose fill cellulose this translates to a total depth ranging from 8 inches. To make it easy to eyeball how level the material is as you blow it in screw depth guides to joists throughout the space. Then to really seal the attic access up tight says olson lay fiberglass batt insulation on the inside of the hatch or door and wrap it up tight like a christmas present photo 3. In temperate coastal areas such as zone 3 attic insulation of at least r30 up to a maximum of r60 is recommended.

To keep the blown in insulation from falling through the attic hatch opening make a 2x12 dam around the hatch perimeter. Your choice in insulation can make a real difference in cleanup and mitigation after a burst pipe or house fire. The attic is the easiest place to add insulation to improve your comfort and the energy efficiency of your home. To get the target r value from the product you chose use the number of bags your calculations showed that you needed to insulate your attic never fewer.

Click the button to calculate the depth in inches and pounds of total insulation required for this job. How deep to put blown in insulation. Greenfiber cellulose insulation fills gaps and voids to create an energy saving thermal blanket that can lower heating and cooling costs by 25 and reduce sound power by 60. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.

Bag of all borate insulation is ideal for professional contractors that offer blow in attic sidewall and floor applications. Attic insulation is a key to saving energy during the heating season. Now that you ve air sealed your attic and basement check your attic insulation levels and add more if necessary. Your options for attic insulation range from radiant barriers to sheets of mineral wool but most homeowners stick with products made from cellulose or fiberglass.

Make sure the fill s depth is uniform across the attic. Bag of all borate contractor grade 30 lb. Find your zone on the map and then use the above insulation r value chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. Input length width and desired r value of the area to be insulated.

Contractor grade 30 lb. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation. Inspecting your attic insulation.