Click the button to calculate the depth in inches and pounds of total insulation required for this job.
How much blown insulation do i need in my attic.
Blowing insulation into walls is best left to the pros because it involves drilling into stud spaces that may contain electrical.
Square footage of your attic.
Input length width and desired r value of the area to be insulated.
Blown in fiberglass is considered flame resistant.
Then check out our handy insulation calculator.
R value is a measure of insulation s ability to resist heat traveling through it.
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.
Handy homeowners can install blown in insulation in the attic.
Insulation efficiently fills gaps.
How much does attic insulation cost.
Whether you need a wall insulation calculator or an attic insulation calculator lowe s blown in insulation calculator has you covered.
Looking to install blown in insulation but don t know how much you need.
Blown in insulation flows down around wall studs.
The r values of both insulations will accumulate.
The higher the r value the better the thermal performance of the insulation.
The pros charge 1 500 to 2 000 to do a 1 200 sq ft.
First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.
The table below shows what levels of insulation are cost effective for different climates and locations in the home.
The main factors that impact the cost are.
Insulation level are specified by r value.
You can achieve better thermal performance in your attic by adding an additional layer of insulation.
You can do it yourself for about 500.
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.
Materials can be layered for added protection.
Type and material of your insulation.
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.
If you need to add insulation in your attic save big by blowing in cellulose insulation yourself.
We include blown in attic insulation pros and cons but we can t recommend blown in fiberglass or cellulose as your best insulating choice.
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.
Blown in insulation overview.
This calculator is to be used as an estimating tool only.
