Blown in insulation overview.
How much blown in insulation to put in attic.
Blowing insulation into walls is best left to the pros because it involves drilling into stud spaces that may contain electrical.
When you need to add insulation to an attic crawl space or walls of a home the fastest and most cost efficient method is to use blown in insulation.
You can achieve better thermal performance in your attic by adding an additional layer of insulation.
Always cover the tops of the ceiling joists to make sure the insulation is deep enough to reach your target r value and to prevent thermal bridging the heat loss that occurs through the wood framing.
Our teams recently helped a homeowner clean up after burst pipes in the attic.
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.
How much does blown in attic insulation cost.
The situation was made much worse by the attic s blown in cellulose insulation.
The average cost of blown in insulation to achieve an r value of r 38 r 49 is 1 665 with most homeowners spending between 874 and 2 156 or 1 59 per square foot.
An average size attic of 1 200 square ft.
Handy homeowners can install blown in insulation in the attic.
The r values of both insulations will accumulate.
Will usually cost about 1 600 2 700.
The pros charge 1 500 to 2 000 to do a 1 200 sq ft.
For an effective insulation project you want to go for a thermal resistance of between r 38 and r 49 which may cost you about 1 59 per square foot which translates to about 1590 if your attic has an area of 1000 square feet.
If you need to add insulation in your attic save big by blowing in cellulose insulation yourself.
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.
Blown in insulation is preferred for being faster and more effective if adding insulation to an already existing home.
To install attic insulation and material cost for cellulose fiberglass with a r value of.
Click the button to calculate the depth in inches and pounds of total insulation required for this job.
You can do it yourself for about 500.
R 30 to r 60 insulation will cost between 0 15 to 0 65 cents per square foot.
On average you can expect to pay between 1 25 to 2 00 per square ft.
Input length width and desired r value of the area to be insulated.
Work from the perimeter of the attic toward the door or hatch so that you don t trample all over the insulation you just put in.
This calculator is to be used as an estimating tool only.
For example if your attic already has fiberglass insulation blankets installed you can improve its r value by installing blown in cellulose insulation on top of the blankets.
